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NPS | 2018
The NPS contracted with ABR, Inc., to develop a map that depicts the day of the year that a Landsat 30-meter pixel becomes snow free during the spring from 1999 to 2015. Annual coverage is…
NPS | 2018
The Everglades National Park (EVER) and Big Cypress National Preserve (BICY) vegetation mapping project is a component of the Comprehensive Everglades Restoration Plan (CERP). The CERP is a…
NPS | 2018
Snow cover strongly influences the energy budget and regional climate of higher latitudes and elevations. The seasonal freeze-thaw (FT) transition is coupled with snowpack melt dynamics and impacts…
USGS | 2018
Enceladus has active eruptions of water ice that create and sustain the famous rings of Saturn. The jets of water are fed from a global ocean hidden underneath a thick shell of ice. …
USGS | 2018
The USGS has been working with the HiRISE (High Resolution Imaging Science Experiment) team to locate the most promising deposits of water ice for future human colonies on Mars. By carefully…
USGS | 2018
High-resolution digital elevation models generated from airborne lidar are often used for studying dynamics specific to barrier islands, including assessing morphology, extracting shorelines, and…
USGS | 2018
Barrier islands provide numerous invaluable ecosystem services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries,…
USGS | 2018
The lack of Pacific Islands topographic (land elevation) and bathymetric (water depth) information led Department of the Interior (DOI) researchers to use advanced remote sensing technologies to…
USGS | 2018
Approximately 90% of the naturally occurring wetlands in California’s Central Valley (including the Sacramento-San Joaquin Delta) have been lost due to land use change, yet the area remains a…
USGS | 2018
Data suggest that long-tailed duck populations are in decline. As a result, efforts have been made to better understand their population distributions through satellite telemetry studies. In…
USGS | 2018
During the spring of 2014, about 105,000 acre-feet (130 million cubic meters) of water were released from the Morelos Dam in the United States into the lower Colorado River into Mexico, allowing…
USGS | 2018
New approaches to habitat characterization are needed to address questions about ecosystems effectively and cost-efficiently, particularly in montane ecosystems where rapid changes in community…