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| 1 | California Simulation of Evapotranspiration of Applied Water and Agricultural Energy Use in California显示文摘The California Simulation of Evapotranspiration of Applied Water (Cal-SIMETAW) model is a new tool developed by the California Department of Water Resources and the University of California, Davis to perform daily soil water balance and determine crop evapotranspiration (ET c ), evapotranspiration of applied water (ET aw ), and applied water (AW) for use in California water resources planning. ET aw is a seasonal estimate of the water needed to irrigate a crop assuming 100% irrigation efficiency. The model accounts for soils, crop coefficients, rooting depths, seepage, etc. that influence crop water balance. It provides spatial soil and climate information and it uses historical crop and land-use category information to provide seasonal water balance estimates by combinations of detailed analysis unit and county (DAU/County) over California. The result is a large data base of ET c and ET aw that will be used to update information in the new California Water Plan (CWP). The application uses the daily climate data, i.e., maximum (T x ) and minimum (T n ) temperature and precipitation (P cp ), which were derived from monthly USDA-NRCS PRISM data (PRISM Group 2011) and daily US National Climate Data Center (NCDC) climate station data to cover California on a 4 km×4 km change grid spacing. The application uses daily weather data to determine reference evapotranspiration (ET o ), using the Hargreaves-Samani (HS) equation (Hargreaves and Samani 1982, 1985). Because the HS equation is based on temperature only, ET o from the HS equation were compared with CIMIS ET o at the same locations using available CIMIS data to determine correction factors to estimate CIMIS ET o from the HS ET o to account for spatial climate differences. Cal-SIMETAW also employs near real-time reference evapotranspiration (ET o ) information from Spatial CIMIS, which is a model that combines weather station data and remote sensing to provide a grid of ET o information. A second database containing the available soil water holding capacity and soil depth information for all of California was also developed from the USDA-NRCS SSURGO database. The Cal-SIMETAW program also has the ability to generate daily weather data from monthly mean values for use in studying climate change scenarios and their possible impacts on water demand in the state. The key objective of this project is to improve the accuracy of water use estimates for the California Water Plan (CWP), which provides a comprehensive report on water supply, demand, and management in California. In this paper, we will discuss the model and how it determines ET aw for use in water resources planning. | Morteza N Orang Richard L Snyder Shu Geng Quinn J Hart Sara Sarreshteh Matthias Falk Dylan Beaudette Scott Hayes Simon Eching | 2013 | Journal of Integrative Agriculture2013，12，8： | 3 |
| 2 | Fast multipole method for scattering from an arbitrary PEC target above or buried in a lossy halfspace 显示文摘 | A Sullivan and L Carin | 2001 | IEEE Trans AP2001，49，5： | 1 |
| 3 | Ultra-wideband synthetic-aperture radar for mine-field detection显示文摘 | Geng N McClure M | 1999 | IEEE Antennas and Propagation Magazine1999，41，1： | 1 |
| 4 | Materials Science and Engineering A显示文摘 | Zhang H W Geng Lin Guan L N | 2010 | 528: 5132010，528，： | 1 |
| 5 | Fast multipole method for scattering from an arbitrary PEC target above or buried in a lossy half space 显示文摘 | Geng N Sullivan A Carin L | 2001 | IEEE Transactions on Antennas and Propagation2001，49，5： | 1 |
| 6 | A simulation model for ET of applied water显示文摘 | Snyder R L Geng S Orang M N | 2004 | Acta Horticulturae2004，664，： | 1 |
| 7 | Oxidation behavior of al- loy 718 at a high temperature 显示文摘 | Geng L Na Y S Park N K | 2007 | Materials & Design2007，28，3： | 1 |
| 8 | Microstructure and tensile properties of Al hybrid composites reinforced with SiC whiskers and SiC nanoparticles显示文摘 | GENG L WANG G S | 2003 | Key Engineering Materials2003，249，： | 1 |
| 9 | Ultra-wide-band synthetic-aperture radar for mine-field detection显示文摘 | Carin L Geng N MeClure M | 1999 | IEEE Antennas and Propagation Magazine1999，41，1： | 1 |
| 10 | Remote sensing rock mechanics (RSRM) and associated experimental studies显示文摘 | WU L X CUI C Y GENG N G | 2000 | International Journal of Rock Mechanics and Mining Sciences2000，37，6： | 1 |
| 11 | Ultrasonic levitation processing and rapid eutectic solidification of liquid Al-Gealloys显示文摘 | YAN N GENG D L HONG Z Y | 2014 | Journal of Alloys and Compounds2014，607，： | 1 |
| 12 | The Covalent Immobilization of Trypsin at the Galleries of γ-Zirconium Phosphate 显示文摘 | Geng L N Li N Li K A | 2003 | Colloid Surface B2003，30，12： | 1 |
| 13 | Direct synthesis of dimethyl toluene-2,4-dicarbamate from 2,4- toluene diamine, urea, and methanol显示文摘 | ZHAO X Q WANG N GENG Y L | 2011 | Ind Eng Chem Res2011，50，13： | 1 |
| 14 | Muliti-level fast-muhipole algorithm for scattering from conducting targets above or embedded in a lossy half space显示文摘 | Geng N Sullivan A Carin L | 2000 | IEEE Trans Geosci Remote Sensing2000，38，： | 1 |
| 15 | Fast multipole method for scattering from an arbitrary PEC target above or buried in a lossy half space显示文摘 | Geng N Sullivan A Carin L | 2001 | IEEE Trans Antennas Propagat2001，49，5： | 1 |
| 16 | Enhancing precise orbit determination of compass with inter-satellite observations 显示文摘 | Liu J N Geng T Zhao Q L | 2011 | Survey Review2011，43，322： | 1 |
| 17 | Study of the primary sensitivity of polypyrrole/γ-Fe2O3 to toxic gases显示文摘 | Geng L N Wang S R Zhao Y Q | 2006 | Material Chemistry Physics2006，99，1： | 1 |
| 18 | Macromolecules显示文摘 | Hu X An H N Li Z M Geng Y Li L B Yang C L | 2009 | 42:32152009，42，： | 1 |
| 19 | Fast Multipole Method for Scattering from an Arbitrary PEC Target above or Buried in a Lossy Half Space显示文摘 | GENG N SULLIVAN A CARIN L | 2001 | IEEE Trans Antennas and Propagation2001，49，： | 1 |
| 20 | Direct synthesis of dimethyl toluene-2,4-dicarbamate from2,4-toluene diamine,urea,and methanol显示文摘 | Zhao X Q Wang N Geng Y L | 2011 | Ind Eng Chem Res2011，50，13： | 1 |
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