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EcoSar FAQs

What is an interferogram?

Interferometric Synthetic Aperture Radar (InSAR) is a technique for using pairs of high resolution SAR images acquired with a small baseline to generate high quality digital elevation maps, monitor crustal deformation due to natural and anthropogenic activities, based on the interference of complex SAR images. For more information one can refer to the articles below. 

EcoSar Data

Available Data Products

All available data products are made available via the following anonymous FTP site:

ftp://fusion.gsfc.nasa.gov/radar/EcoSAR/

We closely follow the UAVSAR PolSAR Data Format, with some added fields that are unique to EcoSAR. For completeness here we provide the entire structure.

EcoSAR data format 

The format of the following files are described:

Field Campaigns

The CALIPSO-CloudSat Validation Experiment's two overarching goals: 1. Establish sensitivity and calibration for CloudSat and Calipso - orbital coordination. 2. Initial microphysical validation - A-Train simulation. 

LIAISE Science Target Area

March 2022

Carbon dioxide is the main greenhouse gas causing climate change, with concentrations now 50% higher than just 150 years ago. Methane is the second most important greenhouse gas, with concentrations 150% higher than 150 years ago. Both gases are targeted by the 2016 UN Paris Agreement, which aims to immediately reduce emissions to zero in order to avoid further warming of our planet.

Space Missions

grip

The Genesis and Rapid Intensification Processes (GRIP) experiment is a NASA Earth science field experiment in 2010 that was conducted to better understand how tropical storms form and develop into major hurricanes.

goes

The Geostationary Operational Environmental Satellite (GOES) – R Series is the nation’s most advanced fleet of geostationary weather satellites. The GOES-R Series significantly improves the detection and observation of environmental phenomena that directly affect public safety, protection of property and our nation’s economic health and prosperity.

glas

GLAS (the Geoscience Laser Altimeter System) is the first laser-ranging (lidar) instrument for continuous global observations of Earth. From aboard the Ice Cloud and Elevation Satellite (ICESat) spacecraft, it will make unique atmospheric observations, including measuring ice-sheet topography, cloud and atmospheric properties, and the height and thickness of radiatively important cloud layers needed for accurate short term climate and weather prediction.

Research Areas

Clouds play an important role in weather and climate on local to global scales. Clouds reflect sunlight and trap heat, affecting the Earth’s heat budget. The release of latent heat energy through the formation of clouds and precipitation is an important heat source for the atmosphere, affecting the large-scale circulations of the atmosphere.

Outreach

Instruments

The primary scientific objective is to provide time/height ozone measurements from near the surface to the top of the troposphere to describe in high-fidelity their spatio-temporal distribution. These high-fidelity measurements provide the GEO-CAPE science team with accurate representations of the PBL and FT ozone structure as proxies for the high time resolved observations from a geosynchronous satellite.

Organizations:

Accurate retrievals of aerosol and cloud properties from space-borne sensors have been achieved with certain degrees of confidence. One of the most difficult tasks remaining to be resolved is when aerosols and clouds co-exist and interact with each other. Solid ground-based observations of the aerosol-cloud-water cycle interactions are critical for providing independent assessments.

Organizations:

A portable ground instrument for measuring CO2 and CH4 in the Earth's atmospheric column.

Organizations:

Models

The Global Modeling Initiative (GMI) Chemical Transport Model (CTM) is part of the NASA Modeling Analysis and Prediction (MAP) program. The GMI CTM is used to assess the impacts of atmospheric circulation and composition change due to anthropogenic emissions, such as those from aircraft, biomass burning, fossil fuel combustion, and use of ozone depleting substances (ODS). GMI studies investigate changes in stratospheric ozone and the roles of long-range transport and changing emissions on air quality.