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Location Folder Show Tree ROOT ScienceBase Catalog Users Filters Date Range Past year (2) Past month (2) Past week (2) Past day (0) Custom range... To   Search Contacts Dinesh (Contractor) Shrestha Stephen P Boyte U.S. Geological Survey U.S. Geological Survey - ScienceBase Earth Resources Observation and Science (EROS) Center More... Categories Data Release - Revised (1) Data Release - Under Revision (1) Tag Types Theme (3) Place (3) USGS Scientific Topic Keyword (2) Harvest Set (1) Tag Schemes Common geographic areas (2) Phenology Metrics (2) None (1) USGS Thesaurus (2) View Results as: JSON ATOM CSV Browse Folder

S-NPP 375-m eVIIRS Remote Sensing Phenology Metrics - across the conterminous U.S. (Under Revision) Note: this data release is currently being revised and is temporarily unavailable. Phenological dynamics of terrestrial ecosystems reflect the response of the Earth's vegetation canopy to changes in climate and hydrology and are thus important to monitor operationally. Researchers at the U.S. Geological Survey (USGS), Earth Resources Observation and Science (EROS) Center have developed methods for documenting the seasonal dynamics of vegetation in an operational fashion from satellite time-series data. The USGS made the decision to develop 2022 CONUS phenology metrics using S-NPP Visible Infrared Imaging Radiometer Suite (VIIRS) because of the decommissioning of Aqua C6 MODIS sensor in the near future. The readily... Categories: Data Release - Under Revision; Tags: Amplitude (AMP), Conterminous U.S. (CONUS), Drought, Duration (DUR), EROS Visible Infrared Imaging Radiometer Suite (eVIIRS), All tags... End of Season NDVI (EOSN), End of Season Time (EOST), Geography, Maximum NDVI (MAXN), Normalized Difference Vegetation Index (NDVI), Phenology, Phenology Metrics, Remote Sensing, Start of Season NDVI (SOSN), Start of Season Time (SOST), Time Integrated NDVI (TIN), Time of Maximum (MAXT), Vegetation Phenology, Fewer tags Exotic annual grass (EAG) phenology estimates in the western U.S. rangelands based on 30-m HLS NDVI (ver. 2.0, April 2024) (Under Revision) Note: this data release is currently being revised and is temporarily unavailable. Phenological dynamics of terrestrial ecosystems reflect the response of the Earth's vegetation canopy to changes in climate and hydrology and are thus important to monitor operationally. The Exotic Annual Grass (EAG) phenology in the western U.S. rangeland based on 30m near seamless Harmonized Landsat and Sentinel-2 (HLS) Normalized Difference Vegetation Index (NDVI) weekly composites between 2016 and 2021 (Dahal et al., 2022) were processed using these 3 methods: (1) NDVI threshold-based method, (2) manual phenological metrics, and (3) modeling and mapping. The EAG phenology model produced two metrics identifying the sustainable... Categories: Data Release - Revised; Tags: Amplitude (AMP), Arizona, California, Colorado, Drought, All tags... Duration (DUR), End of Season NDVI (EOSN), End of Season Time (EOST), Great Basin, Harmonized Landsat Sentinel, Idaho, Kansas, Maximum NDVI (MAXN), Montana, Nebraska, Nevada, New Mexico, Normalized Difference Vegetation Index (NDVI), North Dakota, Oklahoma, Oregon, Phenology, Remote Sensing, South Dakota, Start of Season NDVI (SOSN), Start of Season Time (SOST), Texas, Time Integrated NDVI (TIN), Time of Maximum (MAXT), United States, Utah, Vegetation Phenology, Washington, Western United States, Wyoming, Fewer tags C6 Aqua 250-m eMODIS Remote Sensing Phenology Metrics across the conterminous U.S. Phenological dynamics of terrestrial ecosystems reflect the response of the Earth's vegetation canopy to changes in climate and hydrology and are thus important to monitor operationally. Researchers at the U.S. Geological Survey (USGS), Earth Resources Observation and Science (EROS) Center have developed methods for documenting the seasonal dynamics of vegetation in an operational fashion from satellite time-series data. The phenological metrics data produced at USGS EROS provide indicators of key phenological events for the conterminous United States on a yearly basis based on Collection 6 Aqua eMODIS NDVI input data (for the 2003 - 2020 metrics). As the objective is to monitor the phenological dynamics of the... Tags: Amplitude (AMP), C6 Aqua, Conterminous U.S., Drought, Duration (DUR), All tags... End of Season - Time (EOST), End of Season – NDVI (EOSN), Land Use Change, Maximum NDVI (MAXN), Moderate Resolution Imaging Spectroradiometer (MODIS), Phenology, Phenology Metrics, Remote Sensing, Start of Season – NDVI (SOSN), Start of Season – Time (SOST), Time Integrated NDVI (TIN), Time of Maximum (MAXT), USGS Science Data Catalog (SDC), Vegetation Phenology, eMODIS, Fewer tags Remote Sensing Phenology Metrics across the conterminous U.S. Phenological dynamics of terrestrial ecosystems reflect the response of the Earth's vegetation canopy to changes in climate and hydrology and are thus important to monitor operationally. Researchers at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center have developed methods for documenting the seasonal dynamics of vegetation in an operational fashion from satellite time-series data. The researchers produce two suites of phenological metrics data across the conterminous U.S (CONUS) on a yearly basis and release them publicly. The metrics are based on temporally smoothed Normalized Difference Vegetation Index (NDVI) data from two satellite sensors: Collection 6 Aqua Moderate Resolution...