Ash Plumes

Moderate Resolution Imaging Spectroradiometer (MODIS) imagery are useful for identifying and tracking ash plumes from volcanic eruptions. The use of near real-time (NRT) satellite data for monitoring volcanic plumes is undergoing further developments to enable quantitative retrievals to be produced, which should enable a global capability for volcanic ash monitoring to be introduced.

Potentially useful data sets: MODIS Corrected Reflectance True Color, MODIS Aerosol, Atmospheric Infrared Sounder (AIRS) Visible/Near-IR Radiances and Brightness Temperatures and OMI Sulfur Dioxide (SO2) (total column).

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Worldview showing Sulphur Dioxide emissions (Middle Troposhere) from the Bardarbunga volcano, Iceland

Visualize NRT data related to Ash Plumes in Worldview

Worldview showing Sulfur Dioxide emissions (Middle Troposphere) from the Bardarbunga Volcano, Iceland. Read more at NASA's Earth Observatory.

MODIS / Aqua

Product
(FTP download link)
Description Volume
(GB/day)
Browse Comments
MYD04_L2 10.5067/MODIS/MYD04_L2.NRT.006
L2 Aerosol, 5-Min Swath 10km
0.16 L2 Aerosol Browse N/A
MYD09GA 10.5067/MODIS/MYD09GA.NRT.006
L2G Light Surface Reflectance – Daily 500m and 1km
17.37 L2G Surface Reflectance Browse Bands 1-4-3 & 7-2-1
MYD09GQ 10.5067/MODIS/MYD09GQ.NRT.006
L2G Light Surface Reflectance – Daily 250m
18.82 L2G Surface Reflectance Browse Bands 1-4-3 & 7-2-1
MYD09GHK L2G Surface Reflectance – Daily 500m 18.27 N/A Bands 1-4-3 & 7-2-1
MYD09GQK 10.5067/MODIS/MYD09GHK.NRT.006
L2G Surface Reflectance – Daily 250m
25.48 N/A Bands 1-4-3 & 7-2-1

MODIS / Terra

Product
(FTP download link)
Description Volume
(GB/day)
Browse Comments
MOD04_L2 10.5067/MODIS/MOD04_L2.NRT.006
L2 Aerosol, 5-Min Swath 10km
04 L2 Aerosol Browse N/A
MOD09GA 10.5067/MODIS/MOD09GA_NRT.006
L2G Light Surface Reflectance – Daily 500m and 1km
13 L2G Surface Reflectance Browse Bands 1-4-3 & 7-2-1
MOD09GQ 10.5067/MODIS/MOD09GQ_NRT.006
L2G Light Surface Reflectance – Daily 250m
13 L2G Surface Reflectance Browse Bands 1-4-3 & 7-2-1
MOD09GHK 10.5067/MODIS/MOD09GHK.NRT.006
L2G Surface Reflectance – Daily 500m
13 N/A Bands 1-4-3 & 7-2-1
MOD09GQK 10.5067/MODIS/MOD09GQK.NRT.006
L2G Surface Reflectance – Daily 250m
13 N/A Bands 1-4-3 & 7-2-1

AIRS / Aqua

Product
(FTP download link)
Description Volume
(GB/day)
Browse
AIRVBRAD_NRT.005 L1B Vis/Near-IR geolocated radiances 1.36 N/A
AIRABRAD_NRT.005 L1B AMSU-A1 & AMSU-A2 combined, geolocated & calibrated brightness temperatures 0.14 N/A

OMI / Aura

Product
(FTP download link)
Description Volume
(GB/day)
Browse
OMSO2NRTb L2 Sulphur Dioxide (SO2) Total Column Swath 13x24 km N/A N/A

MLS / Aura

Product
(FTP download link)

Description

Volume (GB/day) Browse
ML2SO2_NRT.003 Sulfur Dioxide (SO2) MLS/Aura NRT L2 SO2 Mixing Ratio 0.02 N/A

Last Updated: Jul 21, 2017 at 12:26 PM EDT