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Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Downloadable (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts Jesslyn Brown MacKenzie O Friedrichs Core Science Systems Matthew P Schauer Olena (Contractor) Boiko Gabriel B Senay Tag Types Subject (2) Place (2) View Results as: JSON ATOM CSV

Temporal Greenness Trends in Stable Natural Land Cover and Relationships with Climatic Variability across the Conterminous United States Assessment of temporal trends in vegetation greenness and related influences aids understanding of recent changes in terrestrial ecosystems and feedbacks from weather, climate, and environment. We analyzed 1-km normalized difference vegetation index (NDVI) time series data (1989–2016) derived from the Advanced Very High Resolution Radiometer (AVHRR) and developed growing-season time-integrated NDVI (GS-TIN) for estimating seasonal vegetation activity across stable natural land cover in the conterminous United States (CONUS). After removing areas from analysis that had experienced land-cover conversion or modification, we conducted a monotonic trend analysis on the GS-TIN time series and found that significant positive... Categories: Publication; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climate variability, Regression analysis, Remote Sensing, Satellite observations, Temperature, All tags... Trends, United States, Vegetation–precipitation interactions, preciptation, Fewer tags Characterization of water use and water balance for the croplands of Kansas using satellite, climate, and irrigation data Kansas is one of the most productive agricultural states in the United States, where agricultural irrigation is a primary user of underground and surface water. Because of low precipitation and declining groundwater levels in western and central Kansas, sustainable management of irrigation water resources is a critical issue in the agricultural productivity of the state. The objective of this study is to analyze and characterize the water use and water balance in the croplands of Kansas using satellite observations, meteorological data, and in situ irrigation water use records. We used actual evapotranspiration (ETa), precipitation, soil moisture, and irrigation water use to calculate water balance for Kansas in... Categories: Publication; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Kansas, cropland, irrigation, pumping data, remote sensing, All tags... water balance, water use, Fewer tags