How remote sensing of streams provides valuable data for the characterization, prediction, and warning of impending flash floods.
remote sensing
Posted inScience Updates
Giovanni: The Bridge Between Data and Science
Using satellite remote sensing data sets can be a daunting task. Giovanni, a Web-based tool, facilitates access, visualization, and exploration for many of NASA’s Earth science data sets.
Posted inResearch Spotlights
On-the-Ground Measurements Overestimate Earth’s Albedo
Weather stations can be used to calibrate and validate albedo measurements from satellites, but they fail to account for variability across landscapes, overestimating how reflective our planet is.
Posted inNews
Satellite Observations Could Help Forecast an Eruption’s End
Researchers studying past volcanic activity found they could retrospectively predict when outflows of molten rock would cease for about 40% of effusive eruptions, the kind that produces flowing lava.
Posted inScience Updates
Tracking River Flows from Space
Satellite observations, combined with algorithms borrowed from river engineering, could fill large gaps in our knowledge of global river flows where field data are lacking.
Posted inScience Updates
Cities Partner to Prepare for Natural Hazards and Climate Change
NASA-Rio-UCCRN Workshop on Sea Level Rise, Urban Heat Islands, and Water Quality; New York, 14–16 November 2016
Posted inScience Updates
Challenges and Opportunities for Coastal Altimetry
10th Coastal Altimetry Workshop; Florence, Italy, 21–24 February 2017
Posted inResearch Spotlights
Using Multiple Satellites Gives a Fuller View of Cloud Structure
The unique strengths of different satellites reveal different facets of cloud systems and precipitation.
Posted inScience Updates
Growing More with Less Using Cell Phones and Satellite Data
Researchers from the University of Washington and Pakistan are using 21st century technology to revive farming as a profitable profession in the Indus Valley.
Posted inScience Updates
An Autonomous Boat to Investigate Acidic Crater Lakes
A novel aquatic drone ventured into highly acidic waters to test the feasibility of remotely exploring and surveying hazardous volcanic lakes.