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Year 2008 Remove constraint 2008: 2008 Subjects mathematical models Remove constraint mathematical models: mathematical models
Displaying items 1 - 10 of 134 start over

1. A canopy transpiration and photosynthesis model for evaluating simple crop productivity models

Description:
Includes references
Author:
Kremer, Cristian , Stockle, Claudio O. , Kemanian, Armen R. , Howell, Terry
Subject:
crops , Triticum aestivum , wheat , Zea mays , corn , plant-water relations , transpiration , photosynthesis , simulation models , mathematical models , crop models , canopy , water use efficiency
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

2. A design aid for determining width of filter strips

Description:
Includes references
Author:
Dosskey, M.G. , Helmers, M.J. , Eisenhauer, D.E.
Subject:
watersheds , filter strips , simulation models , mathematical models , decision support systems , surface water , runoff , nonpoint source pollution , water quality , hydrologic models
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

3. A land surface data assimilation framework using the land information system: Description and applications

Description:
In the special issue: Hydrologic remote sensing / edited by D. Entekhabi.
Author:
Kumar, Sujay V. , Reichle, Rolf H. , Peters-Lidard, Christa D. , Koster, Randal D. , Zhan, Xiwu , Crow, Wade T. , Eylander, John B. , Houser, Paul R.
Subject:
soil water , snow , snowpack , remote sensing , satellites , hydrologic models , algorithms , mathematical models
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

4. A mathematical model of the dynamics of Salmonella Cerro infection in a US dairy herd

Description:
Includes references
Author:
Chapagain, P.P. , Van Kessel, J.S. , Karns, J.S. , Wolfgang, D.R. , Hovingh, E. , Nelen, K.A. , Schukken, Y.H. , Grohn, Y.T.
Subject:
dairy cattle , dairy herds , Salmonella , salmonellosis , disease outbreaks , infection , population dynamics , disease prevalence , host-pathogen relationships , disease surveillance , mathematical models , nonlinear models , epidemiology , United States , Pennsylvania
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

5. A mechanistic treatment of the dominant soil nitrogen cycling processes: model development, testing, and application

Description:
Includes references
Author:
Maggi, F. , Gu, C. , Riley, W.J. , Hornberger, G.M. , Venterea, R.T. , Xu, T. , Spycher, N. , Steefel, C. , Miller, N.L. , Oldenburg, C.M.
Subject:
nitrogen , biogeochemical cycles , agricultural soils , gas emissions , losses from soil , leaching , nitrogen fertilizers , fertilizer application , anhydrous ammonia , nitrate nitrogen , nitrites , irrigation rates , nitrification , denitrification , soil bacteria , irrigation , simulation models , mathematical models , model validation , denitrifying bacteria , California
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

6. A new model of gross primary productivity for North American ecosystems based solely on the enhanced vegetation index and land surface temperature from MODIS

Description:
Includes references
Author:
Sims, Daniel A. , Rahman, Abdullah F. , Cordova, Vicente D. , El-Masri, Bassil Z. , Baldocchi, Dennis D. , Bolstad, Paul V. , Flanagan, Lawrence B. , Goldstein, Allen H. , Hollinger, David Y. , Misson, Laurent , Monson, Russell K. , Oechel, Walter C. , Schmid, Hans P. , Wofsy, Steven C. , Xu, Liukang
Subject:
primary productivity , satellites , remote sensing , image analysis , surface temperature , vegetation types , forests , prediction , mathematical models , equations , North America
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

7. A Pictorial Disease Severity Key and the Relationship Between Severity and Incidence for Black Root Rot of Pansy Caused by Thielaviopsis basicola

Description:
Includes references
Author:
Copes, Warren E. , Stevenson, Katherine L.
Subject:
Viola wittrockiana , ornamental plants , nursery crops , Thielaviopsis basicola , plant pathogenic fungi , root rot , disease incidence , disease severity , disease diagnosis , diagnostic techniques , photography , soil fertility , mathematical models , equations , estimation , model validation
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

8. A Subsurface, Closed-Loop System for Soil Carbon Dioxide and Its Application to the Gradient Efflux Approach

Description:
Includes references
Author:
De Sutter, T.M. , Sauer, T.J. , Parkin, T.B. , Heitman, J.L.
Subject:
loam soils , carbon dioxide , chemical concentration , spatial distribution , temporal variation , spatial variation , quantitative analysis , analytical methods , sampling , sensors , estimation , equations , mathematical models , gas emissions , rain , depth , soil water content
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

9. A thermal-based remote sensing technique for routine mapping of land-surface carbon, water and energy fluxes from field to regional scales

Description:
Includes references
Author:
Anderson, M.C. , Norman, J.M. , Kustas, W.P. , Houborg, R. , Starks, P.J. , Agam, N.
Subject:
canopy , thermal analysis , remote sensing , carbon dioxide , energy balance , water , transpiration , environmental monitoring , soil water content , mathematical models , thematic maps , Oklahoma
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

10. Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models

Description:
Includes references
Author:
Byers, John A.
Subject:
insect pheromones , insect attractants , trapping , pheromone traps , insect flight , mathematical models , simulation models , prediction
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008