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Thumbnail Icon [Science_Parameters: Science_Category='EARTH SCIENCE', Science_Topic='LAND SURFACE', Science_Term='SOILS', Science_Variable_Level_1='NITROGEN']

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15 Titles Match Your Query
Showing 1 through 15 of 15
1. APEX – Agricultural Policy/Environmental eXtender Model [TAMU_APEX]
APEX ? Agricultural Policy/Environmental eXtender Model has components for routing water, sediment, nutrients, and pesticides across complex landscapes and channel systems to the watershed outlet ...

2. Soil - Plant - Atmosphere - Water (SPAW) Hydrologic Budget Model [USDA_ARS_SPAW]
The Soil - Plant - Atmosphere - Water (SPAW) Hydrologic Budget Model is a daily hydrologic budget model for agricultural fields and ponds (wetlands, lagoons, ponds and reservoirs). Included are irrigation ...

3. Nitrogen Decision Aid [USDA_ARS_NDA]
The Nitrogen Decision Aid is a computerized program that predicts the amount of N mineralized from planting to side-dress or 5-leaf growth-stage. By applying just enough N-fertilizer to reach the ...

4. Nitrogen Index Tool [USDA_ARS_NIT]
The effectiveness of nitrogen fertilizer in maximizing agricultural production and increasing economic returns for farmers has led to its widespread use. However, when this element is applied to a ...

5. Climate Discovery Teacher's Guide [ClimateDiscovery]
Climate Discovery Teacher's Guide This teacher's guide was produced by the National Center for Atmospheric Research as a companion to the Climate Discovery exhibit at our Boulder, Colorado laboratory. ...

6. GEON: The Geosciences Network [GEON]
The Geosciences Network (GEON) portal provides access to geoscience data and tools. The portal accommodates national and international research activities. Recognizing this potential, the U.S. Geological ...

7. NASA Land Information System (LIS) [NASA_LIS]
The Land Information System (LIS) is a flexible land surface modeling and data assimilation framework developed with the goal of integrating satellite- and ground-based observational data products ...

8. Regional Hydrological and Ecological Simulation System [RHESSys]
RHESSys = Regional Hydrological and Ecological Simulation System RHESSys combines the terrestrial ecosystem process model Biome-BGC with spatially explicit meteorological information from MTCLIM ...

9. SOILS - Tools for Educators [USDA_NRCS_SOIL_TOOLS]
The SOILS - Tools for Educators provides background information on soils for students. The package includes soil facts, soil information for each state, lesson plans, soil songs, soil quality information ...

10. NASA Land Measurement Portal [NASA_GSFC_LAND_PORTAL]
The Land Measurements Portal provides a single location to find information and data products related to terrestrial observations across agencies and institutions. The portal also serves as a way ...

11. Soil Science Education [Soil_Science_Ed]
The Soil Science Education page is part of The GLOBE Program (Global Learning and Observations to Benefit the Environment), but even if you don't participate in GLOBE, you'll learn a lot about soil ...

12. Web Soil Survey [USDA_NRCS_WSS]
The Web Soil Survey (WSS) is an eGovernment application developed by the USDA-Natural Resources Conservation Service to provide producers, governmental agencies, consultants, and the general public ...

13. CHAIN Model: Evaluates analytical solutions for convective-dispersive transport of solutes subject to consecutive decay chain reactions (up to 4 solutes) [USDA_ARS_CHAIN]
Problems of solute transport involving sequential first-order decay reactions frequently occur in soil systems. Examples are the migration of radionuclides, in which the chain members form a first-order ...

14. Soil Extent Mapping (SEM) Tool [USDA_SEM]
The Soil Extent Mapping (SEM) Tool displays interactive national maps of soil series, based on land area. The objective of this tool is to provide publicly accessible National maps of individual soil ...

15. BASINS: Better Assessment Science Integrating Point & Nonpoint Sources [BASINS-EPA]
BASINS: Better Assessment Science Integrating Point & Nonpoint Sources BASINS is a multipurpose environmental analysis system designed for use by regional, state, and local agencies in performing ...

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