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 SO<sub data-verified=2 emissions (Middle Troposhere) from the Bardarbunga volcano, Iceland" id="4" src="https://cdn.earthdata.nasa.gov/conduit/upload/6561/Bardabunga_SO2_5Sept2014.jpg" data-id="448" data-link="http://go.nasa.gov/1wIpoMt" data-source="uploaded">

Visualize NRT data related to Ash Plumes in Worldview

Worldview showing SO2 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: Aug 24, 2017 at 9:59 AM EDT