Search
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…
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
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 NPS is using the entire Landsat 30-meter resolution data archive (1980s to the present) to study changes in the total surface area of lakes and ponds in the national parks of northern and central…
NPS | 2018
Snowmelt and rain-on-snow (ROS) events enhance the liquid water content of a snowpack, which affects snow properties such as depth, density, grain size, and extent. These changes are associated with…
NPS | 2018
There are 88 NPS park units designated as Ocean and Coastal Parks that encompass 11,000 shoreline miles and 2.5 million acres of ocean and Great Lakes waters. Due to the large and complex…
BOR | 2018
In the United States alone, there are currently over 100,000 miles of canal and levee embankments and approximately 79,000 earthen dams on the national inventory list. Many of these structures…
BOR | 2018
BOR Population at Risk studies are used to determine the possible magnitude of loss of life in the event of a dam failure. Inundation extent, population at risk, and life loss estimation are the…
BOR | 2018
BOR dams and reservoirs like Colorado’s Vega and Green Mountain, and Wyoming's Seminoe have landslide and/or dam issues that require long-term monitoring. In this research, the use of interferometric…
BOR | 2018
The BOR operates the Paradox Valley Unit (PVU), a salinity control project located at Paradox Valley in western Colorado that helps to minimize water degradation in the Colorado River. PVU diverts up…
BOR | 2018
The Colorado River is the principal source of water for agriculture and riparian vegetation in Arizona, southern California, and southern Nevada. To account for water use by each State or individual…
BOR | 2018
Dam safety is an ongoing concern for the BOR. In the interests of maintaining modern dam safety monitoring, BOR has started to investigate the use of small unmanned aircraft systems (sUAS) to improve…