Published Journal Articles
2023 | 2022 | 2021 | 2020 | 2019 | Pre-2019
2023
Smidt, S. J., E. M. K. Haacker, X. Bai, K. Cherkauer, B. Choat, O. Crompton, J. M. Deines, J. Groh, S. M. Guzmán, S. Hartman, A. D. Kendall, M. Safeeq, W. Kustas, B. M. McGill, M. A. Nocco, J. Pensky, J. Rapp, A. Schreiner-Mcgraw, M. Sprenger, L. Wan, L. Weldegebriel, S. Zipper, and D. Zoccatelli (2023). Forming the Future of Agrohydrology. Earth's Future. 11(12). https://doi.org/10.1029/2022EF003410.
Troy, Tara J., Laura C. Bowling, Sadia A Jame, Charlotte I Lee, Jing Liu, Chris Perry and Brian Richter (2023). Envisioning a sustainable agricultural water future across spatial scales. Environ. Res. Lett. 18 085003. DOI 10.1088/1748-9326/ace206
2022
Jame, S., J. Frankenberger, B. Reinhart, and L. Bowling (2022). Mapping Agricultural Drainage Extent in the US Corn Belt: The Value of Multiple Methods. Applied Engineering in Agriculture 38(6): 917-930. https://doi.org/10.13031/aea.15226
Valencia, J., J. Frankenberger, K. Cherkauer, J. M. Martín-López, F. Monserrate, M. da Silva (2022). Water sufficiency for cacao production in the Sierra Nevada de Santa Marta (SNSM) region, Colombia. Journal of Hydrology: Regional Studies 44: 101255, https://doi.org/10.1016/j.ejrh.2022.101255.
Moraes, A. G. d. L., A. H. Watkins, Z. Brecheisen, L. C. Bowling, J. P. Pinto Cáceres, H. M. Novoa, and K. A. Cherkauer (2022). The fast-changing climate reality of Arequipa, Peru. International Journal of Climatology: 1–17. https://doi.org/10.1002/joc.7855
Zhu, Yan, Elaina M. Ludwig, and Keith A. Cherkauer (2022). Estimation of Corn Latent Heat Flux from High Resolution Thermal Imagery. Remote Sensing 14 (11): 2682. https://doi.org/10.3390/rs14112682
Lopez MA, Moreira FF, Hearst A, Cherkauer K, Rainey KM. Physiological breeding for yield improvement in soybean: solar radiation interception-conversion, and harvest index. Theor Appl Genet. 2022 May;135(5):1477-1491. doi: 10.1007/s00122-022-04048-5. Epub 2022 Mar 11. Erratum in: Theor Appl Genet. 2022 Apr 13;: PMID: 35275253.
Moraes, A. G. d. L., Bowling, L. C., Zeballos-Velarde, C. R., Daneshvar, F., Watkins, A. H., & Cherkauer, K. A. (2022). Terrain sensitive climate mapping for the Arequipa Department in Peru. International Journal of Climatology: 1–23. https://doi.org/10.1002/joc.7730
Thompson, N.; S. Sellars; M. Wetzstein; L. Bowling; K. Cherkauer; C. Lee; J. Frankenberger; and B. Reinhart (2022). Does crop insurance inhibit climate change technology adoption?. Mitig Adapt Strateg Glob Change 27: 22. https://doi.org/10.1007/s11027-022-09998-1
2021
Zhu, Y. and K. A. Cherkauer (2021). Pixel-based Calibration and Atmospheric Correction of a UAS-Mounted Thermal Camera for Land Surface Temperature Measurements. Transactions of the ASABE. 64 (6): 2137-2150. doi: 10.13031/trans.14631.
Wei, X. P. Garcia-Chevesich, F. Alejo, V. García, G. Martínez, F. Daneshvar, L.C. Bowling, E. Gonzáles, R. Krahenbuhl, and J.E. McCray. 2021. Hydrologic Analysis of an Intensively Irrigated Area in Southern Peru Using a Crop-Field Scale Framework. Water 13(3): 318. https://doi.org/10.3390/w13030318
Bowling, L.C., E.F. Bocardo-Delgado, A. Erwin, J.R. Frankenberger, Z. Ma, K.E. Mazer, J. Pinto Caceres, R. Popovici, and L.S. Prokopy. 2021. Addressing water resources and environmental quality programming needs in Arequipa, Peru. Journal of Contemporary Water Research and Education 173: 1-12. https://doi.org/10.1111/j.1936-704X.2021.3354.x
Popovici, R., A. G. de L. Moraes, Z. Ma, L. Zanotti, K. A. Cherkauer, A. E. Erwin, K. E. Mazer, E. F. Bocardo Delgado, J. P. Pinto Cáceres, P. Ranjan, and L. S. Prokopy (2021). How do Indigenous and local knowledge systems respond to climate change? Ecology and Society 26 (3): 27. [online] URL: https://www.ecologyandsociety.org/vol26/iss3/art27/.
Popovici, R., A. Erwin, Z. Ma, L.S. Prokopy, L. Zanotti, E.F. Bocardo, J. Pinto, J., L.C. Bowling, E. Zeballos, P. Salas, and G. Arce. 2021. Outsourcing governance in Peru’s integrated water resources management. Land Use Policy 101: 105105. https://doi.org/10.1016/j.landusepol.2020.105105
Smith, SD, LC Bowling, KM Rainey, KA Cherkauer (2021). Quantifying Effects of Excess Water Stress at Early Soybean Growth Stages Using Unmanned Aerial Systems. Remote Sensing 13 (15):2911. https://doi.org/10.3390/rs13152911.
Freitas Moreira, F., H. Rojas de Oliveira, M. Angel Lopez, B. J. Abughali, G. Gomes, K. A. Cherkauer, L. F. Brito, K. M. Rainey (2021) High-throughput phenotyping and random regression models reveal temporal genetic control of soybean biomass production. Frontiers in Plant Science 12:1749. https://doi.org/10.3389/fpls.2021.715983
Daneshvar, Fariborz, Jane R. Frankenberger; Laura C. Bowling; Keith A. Cherkauer; and Andre G. de Lima Moraes (2021). Development of strategy for SWAT hydrologic modeling in data-scarce regions of Peru. Journal of Hydrologic Engineering 26 (7): 05021016. https://doi.org/10.1061/(ASCE)HE.1943-5584.0002086.
Pignotti, G., Chaubey, I., Cherkauer, K., Williams, M. and Crawford, M. (2021), Evaluating soil water routing approaches in watershed‐scale, ecohydrologic modeling. Hydrological Processes 35 (3): e14034. https://doi.org/10.1002/hyp.14034
Cherkauer, Keith A., Laura Bowling, Kyuhyun Byun, Indrajeet Chaubey, Natalie Chin, Darren Ficklin, Alan F. Hamlet, Stephen Kines, Charlotte Lee, Ram Neupane, Garett Pignotti, Sanoar Rahman, Sarmistha Singh, Pandara Valappil Femeena, and Tanja N. Williamson (2021). Climate Change Impacts and Strategies for Adaptation for Water Resource Management in Indiana. Climatic Change 165 (21). https://doi.org/10.1007/s10584-021-02979-4.
2020
Brecheisen, Z., N. Hamp-Adams, A. Tomasek, E.J. Foster, T. Filley, M. Villalta Soto, L. Zuñiga Reynosa, A.L. Moraes, and D.G. Schulze. 2020. Using Remote Sensing to Discover Historic Context of Human-Environmental Water Resource Dynamics. Journal of Contemporary Water Research and Education 171: 74-92. https://doi.org/10.1111/j.1936-704X.2020.3346.x
Bowling, Laura C., Keith A. Cherkauer, Charlotte I. Lee, Janna L. Beckerman, Sylvie Brouder, Jonathan R. Buzan, Otto C. Doering, Jeffrey S. Dukes, Paul D. Ebner, Jane R. Frankenberger, Benjamin M. Gramig, Eileen J. Kladivko, Jeffrey J. Volenec (2020). Agricultural impacts of climate change in Indiana and potential adaptations. Climatic Change 163, 2005–2027. https://doi.org/10.1007/s10584-020-02934-9
Popovici, R., K.E. Mazer, A. Erwin, Z. Ma, J. Pinto, L.C. Bowling, E.F. Bocardo-Delgado, and L.S. Prokopy. 2020. Coproduction Challenges in the Context of Changing Rural Livelihoods. Journal of Contemporary Water Research and Education 171: 111-126. https://doi.org/10.1111/j.1936-704X.2020.3348.x
Mazer, K.E., A.A. Tomasek, F. Daneshvar, E.F. Bocardo Delgado, L.C. Bowling, J.R. Frankenberger, S.K. McMillan, H.M. Novoa, and C.R. Zeballos-Velarde. 2020. Integrated Hydrologic and Hydraulic Analysis of Torrential Flood Hazard in Arequipa, Peru. Journal of Contemporary Water Research and Education 171: 93-110. https://doi.org/10.1111/j.1936-704X.2020.3347.x
Bocardo‐Delgado, E.F., K. E. Mazer and L. C. Bowling (2020), Challenges and Opportunities of International University Partnerships to Support Water Management. Journal of Contemporary Water Research & Education, 171: 1-8. https://doi.org/10.1111/j.1936-704X.2020.3341.x
Mazer, K. E., A. Erwin, R. Popovici, R., E. Bocardo‐Delgado, L. C. Bowling, Z. Ma, L. S. Prokopy, and C. Zeballos‐Velarde (2020), Creating a Collaboration Framework to Evaluate International University‐led Water Research Partnerships. Journal of Contemporary Water Research & Education, 171: 9-26. https://doi.org/10.1111/j.1936-704X.2020.3342.x
de Lima Moraes, A. G., E. Bocardo‐Delgado, L. C. Bowling, F. Daneshvar, J. Pinto, A. H. Watkins, and K. A. Cherkauer (2020), Assessment of Arequipa's Hydrometeorological Monitoring Infrastructure to Support Water Management Decisions. Journal of Contemporary Water Research & Education, 171: 27-48. https://doi.org/10.1111/j.1936-704X.2020.3343.x
Jame, S. and L. Bowling (2020). Groundwater Doctrine and Water Withdrawals in the United States. Water Resour Manage 34, 4037–4052. https://doi.org/10.1007/s11269-020-02642-0.
Lyu, B., S. D. Smith and K. A. Cherkauer (2020). Fine-Grained Recognition in High-throughput Phenotyping. IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), Seattle, WA, USA, 2020, pp. 320-329, doi: 10.1109/CVPRW50498.2020.00044.
Lyu, B., S.D. Smith, X. Yexiang, K.M. Rainey, and K.A. Cherkauer (2020). An Efficient Pipeline for Crop Image Extraction and Vegetation Index Derivation Using Unmanned Aerial Systems. Transactions of the ASABE. 63(4): 1133-1146. (doi: 10.13031/trans.13661) @2020.
2019
Daneshvar, F., J.R. Frankenberger, K.E. Mazer, L.C. Bowling, and E.F. Bocardo Delgado. 2019. Increasing access to hydrologic modeling through a two-phase course. Global Journal of Engineering Education, 21(2), 121-127.
Herrero-Huerta, M., S. Govindarajan, K.A. Cherkauer, and K.M. Rainey (2019). ‘Triple S: A new tool for Soybean High Throughput Phenotyping from UAS-based Multispectral Imagery’. Proc. SPIE 11007, Advanced Environmental, Chemical, and Biological Sensing Technologies XV, 110070K. DOI: 10.1117/12.2519376.
Moreira, F.F., A.A.A. Hearst, K.A. Cherkauer, and K.M. Rainey (2019). Improving the efficiency of soybean breeding with high-throughput canopy phenotyping. Plant Methods 15, 139. doi: 10.1186/s13007-019-0519-4.
Chin, N., J. Day; S. Sydnor; L. S. Prokopy, and K. A. Cherkauer (2019). Exploring Tourism Businesses’ Adaptive Response to Climate Change in Two Great Lakes Destination Communities. Journal of Destination Marketing and Management. DOI: 10.1016/j.jdmm.2018.12.009.
Pre-2019
2018
Rahman, S. and L. Bowling (2018). Streamflow impacts of management and environmental change in the Upper Wabash River Basin. Journal of Hydrologic Engineering. 24(3). https://doi.org/10.1061/(ASCE)HE.1943-5584.0001750
Chin, N., K. Byun, A. F. Hamlet, and K. A. Cherkauer (2018). Assessing Potential Winter Weather Response to Climate Change and Implications for Tourism in the U.S. Great Lakes and Midwest. Journal of Hydrology: Regional Studies. 19, pp 42-56. https://doi.org/10.1016/j.ejrh.2018.06.005.
Wang, L., K. A. Cherkauer, and D. C. Flanagan (2018). Impacts of Climate Change on Soil Erosion in the Great Lakes Region. Water. 10(6), 715; https://doi.org/10.3390/w10060715.
Wang, L., D. Flanagan, Z. Wang and K. A. Cherkauer (2018). Climate change impacts on nutrient losses of two small watersheds in the Great Lakes region. Water, 10(4), 442; https://doi.org/10.3390/w10040442.
Saadat, S., L. Bowling, J. Frankenberger, and E. Kladivko (2018). Estimating Drain Flow from Measured Water Table Depth in Layered Soils under Free and Controlled Drainage. Journal of Hydrology 556: 339-348.
2017
Saadat, S., L. Bowling, J. Frankenberger, and K. Brooks (2017). Effects of controlled drainage on water table recession rate. Transactions of ASABE, 60(3), 813-821. DOI 10.13031/trans.11922.
Wang, L., D. Flanagan, and K. A. Cherkauer (2017). Development of a coupled water quality model. Transactions of the ASABE, 60(4), pp. 1153-1170. DOI 10.13031/trans.12002.
Raj, C., I. Chaubey, R. Muenich, K. A. Cherkauer, P. Gassman, C. Kling, and I. Panagopoulos (2017). Influence of Bioenergy Crop Production and Climate Change on Ecosystem Services. Submitted to Journal of the American Water Research Association (JAWRA), 1-13. https://doi.org/10.1111/1752-1688.12591.
Xavier, A., B. P. Hall, A. Hearst, K. A. Cherkauer and K. M. Rainey, (2017). Genetic Architecture of Phenomic-enabled Canopy Coverage in Glycine max. GENETICS, 206(2), pp1081-1089; https://doi.org/10.1534/genetics.116.198713.
Wang, R. G., L. C. Bowling, K. A. Cherkauer, C. Raj, Y. Her, and I. Chaubey (2017). Biophysical and hydrological effects of future climate change including trends in CO2, in the St. Joseph River watershed, Eastern Corn Belt. Agricultural Water Management, 180(B31), pp 280–296. http://dx.doi.org/10.1016/j.agwat.2016.09.017
2016
Naz, B.S., S-C. Kao, M. Ashfaq, D. Rastogi, R. Mei and L.C. Bowling (2016). Regional hydrologic response to climate change in the conterminous United States using high-resolution hydroclimate simulations, Global and Planetary Change, 143, p. 100-117; http://dx.doi.org/10.1016/j.gloplacha.2016.06.003.
Wang, R., L. C. Bowling, K. A. Cherkauer, C. Raj, Y. Her, and I. Chaubey (2016). Biophysical and hydrological effects of future climate change including trends in CO2, in the St. Joseph River watershed, Eastern Corn Belt. Agricultural Water Management, 180(B), pp 280–296; http://dx.doi.org/10.1016/j.agwat.2016.09.017
Tan, J., K. A. Cherkauer, and I. Chaubey (2016). Developing a comprehensive spectral-biogeochemical database of Midwestern rivers for water quality retrieval using remote sensing data: A case study of the Wabash River and its tributary, Indiana. Remote Sensing. 8(6), 517; doi:10.3390/rs8060517.
Alvarenga, L.A., C.R. de Mello, A. Colombo, L.A. Cuartas, and L.C. Bowling, (2016). Assessment of land cover change on the hydrology of a Brazilian headwater watershed using the Distributed Hydrology-Soil-Vegetation Model, CATENA, 143, Pages 7-17. http://dx.doi.org/10.1016/j.catena.2016.04.001.
Wang, R., K. A. Cherkauer and L. C. Bowling (2016). Corn response to climate stress detected with satellite-based NDVI time series. Remote Sensing, 8(4), 269; doi:10.3390/rs8040269.
Logsdon, R., S. Peel, L. Bowling, M. Heller Haas, R. Turco, J. Frankenberger and I. Chaubey (2016). The Wabash Sampling Blitz: A Case Study on the Effectiveness of Citizen Science, Citizen Science: Theory and Practice 1(1): 3. DOI: http://doi.org/10.5334/cstp.1.
Gould, G. M. Liu, M. Barber, K. A. Cherkauer, P. Robichaud, and J. C. Adam (2016). The Effects of Climate Change and Extreme Wildfire Events on Runoff Erosion over a Mountain Watershed. Journal of Hydrology, 74-91. doi: 10.1016/j.jhydrol.2016.02.025.
Tan, J., K. A. Cherkauer, I. Chaubey, C. D. Troy, and R. Essig (2016), Water quality estimation of river plumes in southern Lake Michigan using Hyperion, Journal of Great Lakes Research. doi: 10.1016/j.jglr.2016.02.009.
Wang, R., L.C. Bowling, and K.A. Cherkauer (2016). Estimation of the Effects of climate variability on Crop yield in the Midwest USA. Agricultural and Forest Meteorology, 216, 141–156. doi:10.1016/j.agrformet.2015.10.001.
2015
Tan, J., K.A. Cherkauer, and I. Chaubey (2015). Using hyperspectral data to quantify water quality parameters in the Wabash River and its tributary, Indiana. International Journal of Remote Sensing, 36(21), 5466-5484.
Hearst, A. and K. A. Cherkauer (2015). Extraction of Small Spatial Plots from Geo-Registered UAS Imagery of Crop Fields. Environmental Practice, 17(3), pp 178-187. doi: 10.1017/S1466046615000162.
Kalcic, Margaret M., Jane Frankenberger, Indrajeet Chaubey, Linda Prokopy, and Laura Bowling (2015). Adaptive Targeting: Engaging Farmers to Improve Targeting and Adoption of Agricultural Conservation Practices. Journal of the American Water Resources Association (JAWRA) 51(4): 973-991. DOI: 10.1111/1752-1688.12336
Khan, A., B.S. Naz and L.C. Bowling (2015). Separating snow, clean and debris covered ice in the Upper Indus Basin, Hindukush-Karakoram-Himalayas, using Landsat images between 1998 and 2002, J. Hydrology, 521, Pages: 46-64.
2014
Nouwakpo, S. K., Huang, C., Weltz, M.A., Pimenta, F.,Chagas, I. , Lima, L. Using fluidized bed and flume experiments to quantify cohesion development from aging and drainage. 2014. Earth Surface professes and Landforms, Volume 39, Issue 6.
Nouwakpo, S. J., James, M. R., Weltz, M. A., Huang, C., Chagas, I., Lima, L. Evaluation of structure from motion for soil microtopography measurement. 2014. The Photogrammetric Record, volume 29, issue 147, pg 297-316.
Kladivko, E.J., M.J. Helmers, L.J. Abendroth, D. Herzmann, R. Lal, M.J. Castellano, D.S. Mueller, J.E. Sawyer, R.P. Anex, R.W. Arritt, B. Basso,J.V. Bonta, L.C. Bowling, R.M. Cruse, N.R. Fausey, J.R. Frankenberger, P.W. Gassman, A.J. Gassmann, C.L. Kling, A. Kravchenko, J.G. Lauer, F.E. Miguez, E.D. Nafziger, N. Nkongolo, M. O'Neal, L.B. Owens, P.R. Owens, P. Scharf, M.J. Shipitalo, J.S. Strock, and M.B. Villamil (2014). Standardized research protocols enable transdisciplinary research of climate variation impacts in corn production systems, Journal of Soil and Water Conservation, 69(6), 532-542;doi:10.2489/jswc.69.6.532.
Jiang, Y., J.R. Frankenberger, Y.H. Sui and L.C. Bowling (2014). Estimation of nonpoint source nitrate concentrations in Indiana rivers based on agricultural drainage in the watershed, J. American Water Resources Association, 50(6), 1501-1514.
Jiang, Y., J.R. Frankenberger, L.C. Bowling and Z. Sun (2014). Quantification of uncertainty in estimated nitrate-N loads in agricultural watersheds, J. Hydrology, 519, 106-116.
Yang, G.X., and L.C. Bowling (2014). Detection of changes in hydrologic system memory associated with urbanization in the Great Lakes region, Water Resources Research, 50 (5), 3750-3763.
2013
Tan, J. and K. A. Cherkauer (2013), Assessing stream temperature variation in the Pacific Northwest using airborne thermal infrared remote sensing, Journal of Environmental Management, 115:206-16. doi: 10.1016/j.jenvman.2012.10.012. Epub 2012 Dec 20.
Day, G. J., N. Chin, S. Sydnor, and K. A. Cherkauer (2013). Weather, Climate, and Tourism Performance: A Quantitative Analysis. Tourism Management Perspectives, 5, 51-56, http://dx.doi.org/10.1016/j.tmp.2012.11.001.
Liu, YL, Zhuang, QL, Chen, M, Pan, ZH, Tchebakova, N, Sokolov, A, Kicklighter, D, Melillo, J, Sirin, A, Zhou, GS, He, YJ, Chen, JQ, L. Bowling, Miralles, D, Parfenova (2013). Response of evapotranspiration and water availability to changing climate and land cover on the Mongolian Plateau during the 21st century, Global and Planetary Change,108, 85-99, DOI: 10.1016/j.gloplacha.2013.06.008.
Ashfaq, M., S. Ghosh, S. C. Kao, L. C. Bowling, P. Mote, D.Touma, S. A. , Rauscher, and N. S. Diffenbaugh (2013). Near-term acceleration of hydroclimatic change in the western U.S., Journal of Geophysical Research: Atmospheres, 118 (19), 10676-10693. DOI: 10.1002/jgrd.50816.
2012
Ahiablame, L., I. Chaubey, B. Engel, K. Cherkauer, and V. Merwade (2012), Estimation of annual baseflow at ungauged sites in Indiana USA, Journal of Hydrology, http://dx.doi.org/10.1016/j.jhydrol.2012.10.002.
Ale, S., L.C. Bowling, M.A. Youssef and S.M. Brouder (2012). Evaluation of simulated strategies for reducing nitrate loss through subsurface drains. Journal of Environmental Quality. 41(1): 217-228.
Ale, S., L. Bowling, P. Owens, S. Brouder and J. Frankenberger (2012). Development and application of a distributed modeling approach to assess the watershed-scale impact of drainage water management. Agricultural Water Management.107:23-33.
Kennedy, C.D., C. Bataille, Z. Liu, S. Ale, J. VanDeVelde, C. R. Roswell, L. C. Bowling, G. J. Bowen (2012). Dynamics of nitrate and chloride during storm events in agricultural catchments with different subsurface drainage intensity (Indiana, USA). Journal of Hydrology. 466-467(2012): 1-10.
2011
Chaubey, I., K. A. Cherkauer, M. Crawford, and B. Engel (2011), Multiscale Sensing and Modeling Frameworks: Integrating Field to Continental Scales, in The Bridge, pp. 39-46, National Academy of Engineering, Washington, DC.
Yang, G., L. C. Bowling; K. A Cherkauer, and B. C Pijanowski (2011), The impact of urban development on hydrologic regime from catchment to basin scales, Landscape and Urban Planning, doi: 10.1016/j.landurbplan.2011.08.003.
Mishra, V., K. A. Cherkauer, and L. C. Bowling (2011), Changing thermal dynamics of lakes in the Great Lakes region: Role of ice cover feedbacks, Global and Planetary Change,75, 155-172.
Mishra, V., K. A. Cherkauer, L. C. Bowling, and M. Huber (2011), Lake ice phenology of small lakes: impacts of climate variability in the Great Lakes Region, Global and Planetary Change, doi:10.1016/j.gloplacha.2011.01.004.
Mishra, V. and K. A. Cherkauer (2011), Influence of cold season climate variability on lakes and wetlands in the Great Lakes region, Journal of Geophysical Research, 116, D12111, doi:10.1029/2010JD015063.
2010
Ale, S., L. C. Bowling, J. R. Frankenberger, S. M. Brouder, and E. J. Kladivko (2010), Climate Variability and Drain Spacing Influence on Drainage Water Management System Operation Vadose Zone Journal, 9, 43-52.
Bowling, L. C. and D. P. Lettenmaier (2010), Modeling the effects of lakes and wetlands on the water balance of Arctic environments, Journal of Hydrometeorology, 11, 276-295.
Yang, G., L. C. Bowling, K. A. Cherkauer, B. Pijanowski, and D. Niyogi (2010), Hydroclimatic Response of Watersheds to Urban Intensity-An Observational and Modeling Based Analysis for the White River Basin, Indiana, Journal of Hydrometeorology, 11(1), 122-138.
Mishra, V., K. A. Cherkauer, and S. Shukla (2010), Assessment of Drought due to Historic Climate Variability and Projected Future Climate Change in the Midwestern United States, Journal of Hydrometeorology, 11(1), 46-68, doi: 10.1175/2009JHM1156.1.
Sinha, T., and K. A. Cherkauer, (2010), Impacts of future climate change on soil frost in the Midwestern United States, Journal of Geophysical Research, doi:10.1029/2009JD012188.
Cherkauer, K. A., and T. Sinha (2010), Hydrologic Impacts of Projected Future Climate Change in the Lake Michigan Region, Journal of Great Lakes Research, doi: 10.1016/j.jglr.2009.11.012.
Sinha, T., K. A. Cherkauer, and V. Mishra (2010), Impacts of historic climate variability on seasonal soil frost in the Midwestern United States, Journal of Hydrometeorology, 11(2), 229-252. doi: 10.1175/2009JHM1141.1.
Mishra, V., K. A. Cherkauer, D. Niyogi, M. Lei, B. C. Pijanowski, D. K Ray, L. C. Bowling, and G. Yang (2010), A regional scale assessment of land use/land cover and climatic changes on water and energy cycle in the upper Midwest United States, International Journal of Climatology, DOI: 10.1002/joc.2095.
Abou Najm, M. R., R. H. Mohtar, K. A. Cherkauer, and B. F. French (2010), Effect of integrating hydrologic scaling concepts on students learning and decision making experiences, Advances in Engineering Education, 2(1), 20 pp. Available on-line at http://advances.asee.org/vol02/issue01/11.cfm.
Ashfaq, M., L. C. Bowling, K. A. Cherkauer, J. S. Pal, and N. S. Diffenbaugh (2010), Influence of climate model biases and daily-scale temperature and precipitation events on hydrological impacts assessment: A case study of the United States, Journal of Geophysical Research, 115, D14116, doi:10.1029/2009JD012965.
Mishra, V. and K. A. Cherkauer (2010), Retrospective droughts in the crop growing season: Implications to corn and soybean yield in the Midwestern United States, Agricultural and Forest Meteorology, 150, 1030-1045.
Mao, D., K. A. Cherkauer, and D.C. Flanagan (2010), Development of a coupled soil erosion and large-scale hydrology modeling system, Water Resources Research, 46, W08543, doi:10.1029/2009WR008268.
Mishra, V., K. A. Cherkauer, and L. C. Bowling (2010), Parameterization of Lakes and Wetlands for Energy and Water Balance Studies in the Great Lakes Region, Journal of Hydrometeorology, 11(5), 1057-1082, doi: 10.1175/2010JHM1207.1.
Sabo, J. L., T. Sinha, L. C. Bowling, G. H. W. Schoups, W. W. Wallender, M. E. Campana, K. A. Cherkauer, P. L. Fuller, W. L. Graf, J. W. Hopmans, J. S. Kominoski, C. Taylor, S. W. Trimble, R. H. Webb, and E. E. Wohl (2010), Reclaiming freshwater sustainability in the Cadillac Desert, Proceedings of the National Academy of Sciences, 107(50), 21263-21269.
2009
Ale, S., L. C. Bowling, S. M. Brouder, J. R. Frankenberger, and M. A. Youssef (2009), Simulated effect of drainage water management operation strategy on hydrology and crop yield for Drummer soil in the Midwestern United States, Agricultural Water Management, 96(4), 653-665.
Mao, D., and K. A. Cherkauer (2009), Impacts of land-use change on hydrologic responses in the Great Lakes region. Journal of Hydrology, 374(1-2), 71-92. doi: 10.1016/j.jhydrol.2009.06.016.
Naz, B.S., S. Ale, L.C. Bowling (2009), Detecting Subsurface Drainage Systems and Estimating Drain Spacing in Intensively-managed Agricultural Landscapes. Agricultural Water Management, 96 (4), 627-637.
2008
Naz, B. S., L. C. Bowling (2008), Automated identification of tile lines from remotely sensed data, Trans. ASABE, 51(6): 1937-1950.
Sinha, T., and K. A. Cherkauer (2008), Time series analysis of soil freeze and thaw processes in Indiana, Journal of Hydrometeorology, 9(5), 936-950.
2007
Bohn, T. J., D. P. Lettenmaier, K. Sathulur, L. C. Bowling, E. Podest, K. C. McDonald, and T. Friborg (2007), Methane emissions from western Siberian wetlands: heterogeneity and sensitivity to climate change, Env. Res. Lett., 2, doi:10.1088/1748-9326/2/4/045015.
2006
Doten, C. O., L. C. Bowling, E. P. Maurer, J. S. Lanini, and D. P. Lettenmaier (2006), A spatially distributed model for the dynamic prediction of sediment erosion and transport in mountainous forested watersheds, Water Resour. Res., Vol. 42, No. 4, W0441710.1029/2004WR003829
Handcock, R. N., A. R. Gillespie, K. A. Cherkauer, J. E. Kay, S. J. Burges, and S. K. Kampf (2006), Accuracy and uncertainty of thermal-infrared remote sensing of stream temperatures at multiple spatial scales, Remote Sensing of Env., 100, 427-440.
2005
Cherkauer, K. A., S. J. Burges, R. N. Handcock, J. E. Kay, S. K. Kampf, and A. R. Gillespie (2005), Assessing Satellite-Based and Aircraft-Based Thermal Infrared Remote Sensing for Monitoring Pacific Northwest River Temperature, J. American Water Resour. Assoc., 41(5), 1149-1160.
Kay, J. E., S. K. Kampf, R. N. Handcock, K. A. Cherkauer, A. R. Gillespie, and S. J. Burges (2005), Accuracy of Lake and Stream Temperatures Estimated from Thermal Infrared Images, J. American Water Resour. Assoc., 41(5), 1161-1175.
Su, F., J. C. Adam, L. C. Bowling, and D. P. Lettenmaier (2005), Streamflow Simulations of the Terrestrial Arctic Domain , Journal of Geophysical Research,110, D08112, doi:10.1029/2004JD005518.
2004
Bowling, L. C., J. W. Pomeroy, and D. P. Lettenmaier (2004), Parameterization of blowing snow sublimation in a macroscale hydrology model, Journal of Hydrometeorology, 5(5).
2003
Bowling, L. C., D. L. Kane, R. E. Gieck, L. D. Hinzman, and D. P. Lettenmaier (2003), The role of surface storage in a low-gradient arctic watershed, Water Resources Research, vol.39, NO.4, 1087-1099, doi:10.1029/2002WR001466.
Bowling, L. C., D. P. Lettenmaier, B. Nijssen, L. P. Graham, D. B. Clark, M. El Maayar, R. Essery, S. Goers, Y. M. Gusev, F. Habets, B. van den Hurk, J. Jin, D. Kahan, D. Lohmann, X. Ma, S. Mahanama, D. Mocko, O. Nasonova, G. Y. Niu, P. Samuelsson, A. B. Shmakin, K. Takata, D. Verseghy, P. Viterbo, Y. Xia, Y. Xue, and Z.L. Yang (2003), Simulation of high latitude hydrological processes in the Torne-Kalix basin, PILPS Phase 2e, 1: Experiment description and summary intercomparisons, Journal of Global and Planetary Change, 38(1-2), 1-30.
Bowling, L. C., D. P. Lettenmaier, B. Nijssen, J. Polcher, R. D. Koster and D. Lohmann (2003), Simulation of high latitude hydrological processes in the Torne-Kalix basin: PILPS Phase 2(e) 3: Equivalent model representation and sensitivity experiment, Journal of Global and Planetary Change, 38(1-2), 55-71.
Cherkauer, K. A., L. C. Bowling, and D. P. Lettenmaier (2003), Variable Infiltration Capacity (VIC) Cold Land Process Model Updates, Journal of Global and Planetary Change, 38(1-2), 151-159.
Cherkauer, K. A., and D. P. Lettenmaier (2003), Simulation of spatial variability in snow and frozen soil, J. Geophys. Res., 108(D22), 8858, doi:10.1029/2003JD003575.
Nijssen, B., L. C. Bowling, D. P. Lettenmaier, D. B. Clark, M. El Maayar, R. Essery, S. Goers, Y. M. Gusev, F. Habets, B. van den Hurk, J. Jin, D. Kahan, D. Lohmann, X. Ma, S. Mahanama, D. Mocko, O. Nasonova, G. Y. Niu, P. Samuelsson, A. B. Shmakin, K. Takata, D. Verseghy, P. Viterbo, Y. Xia, Y. Xue, and Z. L. Yang (2003), Simulation of high latitude hydrological processes in the Torne-Kalix basin: PILPS Phase 2(e) 2: Comparison of model results with observations, Journal of Global and Planetary Change, 38(1-2), 31-53.
Pre-2003
Bowling, L.C. and D. P. Lettenmaier (2001), The effect of forest roads and harvest on catchment hydrology in a mountainous maritime environment, in Land Use and Watersheds: Human Influence on Hydrology and Geomorphology in Urban and Forest Areas, Water Science and Application, The American Geophysical Union, 2, 145-164.
Bowling, L. C., P. Storck and D. P. Lettenmaier (2000), Hydrologic effects of logging in Western Washington, United States, Water Resources Research, 36 (11), 3223-3240.
Bowling, L. C., D. P. Lettenmaier and B. V. Matheussen (2000), Hydroclimatology of the Arctic drainage basins, in The Freshwater Budget of the Arctic Ocean, E.L. Lewis et al. (eds), Kluwer Academic Publishers, The Netherlands, 57-90.
Cherkauer, K. A. and D. P. Lettenmaier (1999), Hydrologic effects of frozen soils in the upper Mississippi River basin, J. Geophys. Res., 104(D16), 19,599-19,610.
Emery, W. J., Cherkauer, K., B. Shannon, and R. W. Reynolds (1997), Hull-Mounted Sea Surface Temperatures from Ships of Opportunity, J. Atm. Oceanic Tech., Vol 14, N 5, 1237-1251
Storck, P., L. C. Bowling, P. Wetherbee and D. Lettenmaier (1999), Application of a GIS-based distributed hydrology model for prediction of forest harvest effects on peak stream flow in the Pacific Northwest, in Hydrological Applications of GIS, A.M. Gurnell and D.R. Montgomery (eds.), John Wiley and Son.
Storck, P., L. C. Bowling, P. Wetherbee and D. Lettenmaier (1998), Application of a GIS-based distributed hydrology model for prediction of forest harvest effects on peak stream flow in the Pacific Northwest, Hydrological Processes, 12, 889-904.
Data Publications
2022
Valencia, J., Frankenberger, J., Cherkauer, K., Martín-López, J.M., Monserrate, F., da Silva, M.A. (2022). Post-processed climate dataset for the Sierra Nevada de Santa Marta (SNSM) Region in Colombia. Harvard Dataverse, V1. https://doi.org/10.7910/DVN/YNNXO1.
2021
Tuinstra, M. R., Crawford, M. M., Delp, E. J., Habib, A. F., Cherkauer, K. A., Biehl, L. L. (2021). Geospatial Image Data for Sorghum Phenotyping. Purdue University Research Repository. doi:10.4231/MY7W-FH43
2020
Moraes, A. G., L. C. Bowling, C. Z. Velarde, K. A. Cherkauer (2020). Arequipa Climate Maps - Yearly, Monthly and Daily. Purdue University Research Repository. doi:10.4231/Y00Z-N127
Daneshvar, F., J. R. Frankenberger, L. C. Bowling, K. A. Cherkauer, J. A. Vera Mercado (2020). Estimated land cover properties for hydrologic modeling in Arequipa, Peru. Purdue University Research Repository.doi:10.4231/GYN8-W684
Daneshvar, F., J. R. Frankenberger, L. C. Bowling, K. A. Cherkauer, M. J. Villalta Soto (2020). Estimated soil physical properties for hydrologic modeling in Arequipa, Peru. Purdue University Research Repository. doi:10.4231/N5MX-9W30
Smith, Stuart D, Keith A Cherkauer, Laura C Bowling (2020). Monitored soil moisture and temperature in Indiana crop rotated field. (Version 2.0). Purdue University Research Repository. doi:10.4231/FM0P-AJ03
2019
Moraes, A. G., L. C. Bowling, C. R. Zeballos Velarde, K. A. Cherkauer (2019). Arequipa Climate Maps – Normals. Purdue University Research Repository. doi:10.4231/490D-HC66
Lyu, B., S. D. Smith, K. A. Cherkauer, K. Rainey (2019). HTP-Soy: An Aerial Image Set of Multi-category Soybean for High-Throughput Phenotyping (HTP). Purdue University Research Repository. doi:10.4231/ZAD3-MG98
2017
Tan, J., K. A. Cherkauer, I. Chaubey (2017). Wabash spectral-biogeochemical database. Purdue University Research Repository. doi:10.4231/R7000030
Dissertations & Thesis
Thesis are generally available through the Purdue University Libraries.
2023 | 2022 | 2021 | 2020 | 2019 | Pre-2019
2024
Slotke, Andrea (2024), Monitoring Harmful Algal Blooms in Kosciusko County, Indiana With Remote Sensing Insights. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Tiwari, Alka (2024), Hydrometeological Impacts of the Atlantic Ttopical Cyclones Using Satellite Precipiation Data. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Lee, Kevin (2024), Multimodal Spatial-Temporal Data Fusion Techniques for Enhancing Field Crop Biomass Estimation in Precision Agriculture. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2023
Jame, Sadia (2023), Influence of Irrigation and Drainage Practices on Water Resources. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
Lee, Charlotte (2023), Evaluating Subsurface Drainage Hydroclimatology and Impacts on Streamflow Across the Corn Belt. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2022
Rahman, Md. Sanoar (2022), Crop Water Status Quantification Using Thermal and Multispectral Sensing Technologies. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
Zhu, Yan (2022), Crop Water Status Quantification Using Thermal and Multispectral Sensing Technologies. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2021
Abughali, Bilal (2021), Parameterization of Crop Models Using UAS Captured Data. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Watkins, Alec (2021), High-Resolution Monthly Crop Water Demand Mapping. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Smith, Stuart (2021), Quantifying the impacts of inundated land area on streamflow and crop development. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professors: L. C. Bowling and K. A. Cherkauer.
2020
Chagas, Isis S. P. C. (2020), The use and behavior of sorption media in mitigating excessive dissolved phosphorus in surface waters. Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2019
Kines, Stephen (2019), Modeling the Impacts of Lakes and Wetlands on Streamflow. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Pre-2019
2017
Lee, Charlotte (2017), Regional variability of subsurface drainage in the U.S. Corn Belt. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2016
Chin, Natalie (2016). Exploring the potential impacts of climate change on North America's Laurentian Great Lakes tourism sector. Doctoral Dissertation, Purdue University, West Lafayette, IN. October 2016. Major Professor: K. A. Cherkauer.
Wang, Ruoyu (2016). Investigation of Climate Variability and Climate Change Impacts on Corn Yield in the Eastern Corn Belt, USA. Doctoral Dissertation, Purdue University, West Lafayette, IN. March 2016. Major Professors: L. C. Bowling and K. A. Cherkauer.
Wang, Lili (2016). Climate Change Impacts on Water Quality in the Great Lakes Region. Doctoral Dissertation, Purdue University, West Lafayette, IN. March 2016. Major Professor: K. A. Cherkauer.
2015
Chagas, I. S. P. (2015). Estimating phosphorus removal by steel slag in a flume experiment: Effects of P concentration and subsurface hydrological condition. Master's thesis. Major Professor: L. C. Bowling.
Tan, Jing (2015), Estimating the Water Quality Condition of River and Lake Water in the Midwestern United Stated from its Spectral Characteristics, Doctoral Dissertation, Purdue University, West Lafayette, IN. December 2015. Major Professor: K. A. Cherkauer.
Smith, Stuart (2015), Evaluating Management Options: Simulating Wetland Processes and Performance of Nutrient Reduction by use of a Water Quality Algorithm, Masters Thesis, Purdue University, West Lafayette, IN. October 2015. Major Professor: L. C. Bowling.
2014
Hearst, Anthony (2014), Automatic extraction of plots from geo-registered UAS imagery of crop fields with complex planting schemes. Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Chen, Wei-Chih (2014), Assessment of Irrigation Use on Crop Yield and Water Supplies in the Midwestern U.S., Doctoral Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Stewart, Emily (2014), Hydrologic Impacts due to Land Cover Change in the Yellowwood Lake Watershed, Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2013
Brooks, Kyle (2013), Measurement of drain flow, soil moisture, and water table to assess drainage water management, Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
Chiu, Chun-Mei (2013), Observation-based algorithm development for subsurface hydrology in northern temperate wetlands, Doctoral Dissertation, Purdue University, West Lafayette, IN. (Dissertation Number 3612937). Major Professor: L. C. Bowling.
Roath, Jennifer (2013), An evaluation of spatial variability of water stress index across the United States: Implications of supply and demand in the east vs the west, Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2012
Rutkowski, Sarah (2012), Role of Climate Variability on Subsurface Drainage and Streamflow Patterns in Agricultural Watersheds, Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2011
Tan, Jing (2011), Assessing Stream Temperature Variation and Its Relationship with Urbanization in the Pacific Northwest, Masters Thesis, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Naz, Bibi S. (2011), The Hydrologic Sensitivity of the Upper Indus River to Glacier Changes in the Karakoram Himalayas, PhD Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
Yang, Gaven (2011), Hydrologic Response of Watersheds to Urbanization in the Upper Great Lakes Region, PhD Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2010
Mishra, Vimal (2010), Understanding the Impacts of Historic Climate Variability and Climate Change on Lakes in the Great Lakes Region, PhD Dissertation. Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2009
Ale, S. (2009), Impact of Drainage Water Management on Watershed Nitrate Load in West Central Indiana, PhD Dissertation, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
2008
Mao, Dazhi (2008), Development and application of a coupled erosion and hydrology modeling system, PhD Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
Sathulur, K. (2008), The spatial distribution of water table position in northern Eurasian wetlands using the Variable Infiltration Capacity Model, Master of Science in Engineering Thesis, Purdue University. Major Professor: L. C. Bowling.
Sinha, Tushar (2008), Climate change impacts on the hydrologic role of seasonal soil frost in the northern Midwestern United States, PhD Dissertation, Purdue University, West Lafayette, IN. Major Professor: K. A. Cherkauer.
2006
Naz, Bibi S. (2006), Hydrologic Impact of Subsurface Drainage of Agricultural Fields, Master Thesis, Purdue University, West Lafayette, IN. Major Professor: L. C. Bowling.
Other Products & Publications
Book Chapters
2018
Bowling, L. C. and K. A. Cherkauer (2018). The Green, Blue, and Gray Water Rainbow: Our precious, powerful and oft-overlooked commodity. In: J. Eise and K. Foster (ed.) How to Feed the World, pp 24-45. Island Press, Washington, DC.
2013
Cherkauer, K. A., L. C. Bowling, and B. Naz (2013) Watershed Hydrology in Periglacial Environments. In: John F. Shroder (Editor-in-chief), R. Giardino, and J. Harbor (Volume Editors). Treatise on Geomorphology, Volume 8, Glacial and Periglacial Geomorphology,San Diego: Academic Press. pp. 151-172.
2012
Handcock, R. N., C. E. Torgersen, K. A. Cherkauer, A. R. Gillespie, K. Tockner, R. N. Faux, and J. Tan (2012), Thermal Infrared Remote Sensing of Water Temperature in Riverine Landscapes, in Fluvial Remote Sensing for Science and Management, editors P. E. Carbonneau and H. Piegay, John Wiley & Sons, pp 85-114, UK. doi: 10.1002/9781119940791.ch5.
Conference Proceedings & Non-Reviewed Articles (Since 2004)
2008
Hayhoe, K. and D. Wuebbles (eds.) (2008), Climate change and Chicago: Projections and potential impacts, K. A. Cherkauer 1 of 21 contributing authors (Chapters 2 and 3), available for download at http://www.chicagoclimateaction.org/pages/research___reports/48.php.
Bowling, L. C., K. A. Cherkauer and J. C. Adam (2008), Current capabilities in soil thermal representations within a large scale hydrology model, Proceedings of the Ninth International Conference on Permafrost, June.
Wuebbles, D., K. Hayhoe and K. A. Cherkauer (2008), Climate change and the upper Mississippi River basin, Proceedings of the Flood Forum, St. Louis University, 11 November.
2007
Ale, S., B. S. Naz, and L.C. Bowling (2007), Mapping of Tile Drains in Hoagland Watershed for Simulating the Effects of Drainage Water Management, Paper number 072144, 2007 ASAE Annual Meeting.
Bohn, T. J., D. P. Lettenmaier, K. Sathulur, and L.C. Bowling, 2007: Large-scale modeling of wetland methane emissions, iLEAPS Newsletter 4, 40-42
Najm, M. A., R. H. Mohtar, K. A. Cherkauer, and B. French (2007), How Can Large-Scale Hydrologic Modeling Enhance Student Learning and Decision Making?, ASABE Annual International Meeting, Minneapolis, MN, June 18, 2007, Paper Number 078007.
2006
Ale, S., L. C. Bowling, S. Brouder, and J. R. Frankenberger (2006), Simulating the effects of drainage water management using DRAINMOD, ASABE Paper Number: 062313, presented in Portland, OR. St. Joseph, MI: ASABE.
Goss, A. M., L. C. Bowling, J. Harbor (2006), Assessing the Historical Impacts of Landscape Transformation on Water Fluxes. Proceeding of American Water Resources Association Spring Specialty Conference: Geographic Information Systems and Water Resources IV, Houston, TX, May.
Frankenberger, J. R., E. Kladivko, R. Adeuya, L. C. Bowling, B. Carter, S. Brouder, J. Lowenberg-DeBoer, and J. Brown (2006), Drainage water management impacts on nitrate load, soil quality, and crop yield, Proc. Innovations in Reducing Nonpoint Source Pollution Conf., Indianapolis, IN, 28-30 Nov.
Mao, D., K. A. Cherkauer, D. C. Flanagan (2006). Large-Scale Impacts of Frozen Soil on Soil Erosion: Coupling the WEPP Model to a Macro-Scale Hydrologic Model, ASABE Paper Number: 062188, presented in Portland, OR. St. Joseph, MI: ASABE.
2005
Frankenberger, J. E. Kladivko, J. Gutwein, R. Adeuya, L. C. Bowling, B. Carter, S. Brouder, J. Lowenberg-DeBoer and J. Brown (2005), On-farm monitoring to assess the impacts of drainage water management, Paper No. 052027, Tampa, Florida: ASABE Annual International Meeting.