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Remote sensing

Two world maps showing global sea-level rates computed from satellite data.
Posted inEditors' Highlights

ICESat-2 Adds Estimates of Sea Level Trends to Accomplishments

by Kathleen A. Donohue 27 October 202127 October 2021

The high spatial resolution and high orbit of ICESat-2 make it suited for measuring sea level close to the coast and in the polar regions, filling a gap in our sea level observational system.

Vista desde el suelo de una marca de tractor en un suelo de un campo de cultivos
Posted inResearch Spotlights

Una mirada global al carbono orgánico superficial del suelo

by David Shultz 14 July 202128 September 2021

El carbono orgánico del suelo es un elemento importante para la salud de los ecosistemas y del clima. En la actualidad la teledetección permite a los científicos observar globalmente esta importante pieza del rompecabezas del carbono.

Maps of London showing the average surface daytime temperature, vegetation activity and Leaf area index during summer.
Posted inEditors' Highlights

Urban Vegetation Key Regulator for Heat Island Intensity

by D. Wuebbles 4 May 202128 September 2021

Satellite data reveals that urban vegetation, especially urban forests, is the most important factor regulating Urban Heat Island intensity.

Posted inEditors' Highlights

High Climatic Response of High-Latitude Forests

by E. Davidson 1 December 202022 December 2021

The seasonal amplitude of atmospheric CO2 is increasing, partly due to boreal forest responses to warming. Photosynthesis and expansion of boreal forests are shown here to be temperature-limited.

Numerous piles of logs lie stacked in a tract cleared amid lush forest.
Posted inResearch Spotlights

How Forest Degradation Affects Carbon and Water Cycles

by Kate Wheeling 25 August 202029 September 2021

Forest degradation may be as widespread as deforestation in the Amazon, but its impact on energy, carbon, and water fluxes is less well understood.

Map of Land subsidence predictions in the western United States obtained via machine learning
Posted inEditors' Highlights

Machine Learning Predicts Subsidence from Groundwater Pumping

by Marc F. P. Bierkens 17 August 202014 January 2022

Machine learning and data on aquifer type, sediment thickness, and proxies for irrigation water use has been used to produce the most comprehensive map of land subsidence in the western U.S. to date.

A hilltop in the Crowsnest Forest Reserve, Alberta, Canada
Posted inNews

Canada’s Rocky Mountain Forests Are on the Move

by Mara Johnson-Groh 7 August 202011 December 2021

Using century-old surveying photos, scientists have mapped 100 years of change in the Canadian Rockies to document the climate-altered landscape.

Rodrigo de Freitas Lagoon
Posted inScience Updates

Earth Observations Inform Cities’ Operations and Planning

by M. M. Hurwitz, C. Braneon, D. B. Kirschbaum, F. Mandarino and R. Mansour 16 July 202031 March 2022

Rio de Janeiro, Brazil, and Chicago, Ill., are using NASA Earth observations to map, monitor, and forecast water and air quality, urban heat island effects, landslide risks, and more.

Smoke from a smoldering fire rises above trees and brush south of Bismarck, N.D.
Posted inResearch Spotlights

Great Plains Plants Bounce Back After Large Wildfires

by Sarah Stanley 13 July 202029 September 2021

An analysis of nearly 1,400 wildfires suggests that some postfire techniques used to help restore vegetation may be unnecessary.

Photo of snowpack in the Sierra Nevada
Posted inResearch Spotlights

Snowpack Data Sets Put to the Test

by David Shultz 30 March 202029 September 2021

A new study compares the accuracy of three observation-based methods of calculating snow water equivalent, a key component in water management.

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From AGU Journals

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Geophysical Research Letters
“Climate Change Drives Widespread and Rapid Thermokarst Development in Very Cold Permafrost in the Canadian High Arctic”
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“Vegetation modeled as a water cloud”
By E. P. W. Attema,  Fawwaz T. Ulaby

HOT ARTICLE
Geophysical Research Letters
“Numerical Simulation of Atmospheric Lamb Waves Generated by the 2022 Hunga-Tonga Volcanic Eruption”
By Angel Amores et al.

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