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Geological Earth Mapping Experiment

Carbon Cycle & Ecosystems

3
view all deployment dates
Deployments
1
Platforms
2
Data Products

The Campaign

The Geological Earth Mapping Experiment (GEMx) is a collaborative effort between NASA and the United States Geological Survey (USGS). The purpose of GEMx is to map critical minerals using airborne hyperspectral imagery and examine their effects on climate. To date, GEMx has conducted three deployments over the southwestern United States during the boreal spring, summer, and fall of 2023-2024. Hyperspectral imagery was gathered using remote sensors such as the MODIS/ASTER Airborne Simulator (MASTER), Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), and Hyperspectral Thermal Emission Spectrometer (HyTES). GEMx is funded through the USGS Earth Mapping Resources Initiative (Earth MRI) and aims to support the development of NASA’s Surface Biology and Geology (SBG) mission.

2023-04-25 — 2025-12-31

Southwestern United States, California, Arizona, Nevada
boreal fall, boreal spring, boreal summer

N: 43°N

S: 30°N

W: 125°W

E: 109°W

Additional Notes

Repositories

CRITICAL MINERALS
SURFACE MINERALS
MINERAL DUST
MINERALS
HYPERSPECTRAL IMAGERY
EARTH SURFACE MINERAL DUST SOURCE INVESTIGATION (EMIT)
SURFACE BIOLOGY AND GEOLOGY (SBG) MISSION
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Events

3 Deployments
3 IOPs
20242025

Filter data products from this campaign by specific platforms, instruments, or formats.

Platforms
PLATFORMS
Instruments
INSTRUMENTS
Formats
FORMATS
10.3334/ORNLDAAC/2319External Link
10.3334/ORNLDAAC/2370External Link
NASA, USGS
USGS Earth Mapping Resources Initiative
Currently unavailable
Raymond Kokaly
Currently unavailable

ORNL DAACExternal Link

USGS
Currently unavailable