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Ash Plumes

MODIS imagery are useful for identifying and tracking ash plumes from volcanic eruptions. The use of 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 True Color and Bands 1-4-3, MODIS Aerosol, AIRS Vis/Near-IR Radiances and Brightness Temperatures and OMI Sulfur Dioxide (SO2) (total column).

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Visualize NRT data related to Ash Plumes in Worldview

Worldview showing Sulfur Dioxide emissions (Middle Troposphere) from the Nyiragongo Volcano, near Goma, Democratic Republic of Congo. Read more at NASA's Earth Observatory.

Downloadable NRT data related to Ash Plumes

MODIS / Aqua

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
BrowseComments
MYD04_L2L2 Aerosol, 5-Min Swath 10km0.16L2 Aerosol BrowseN/A
MYD09GAL2G Light Surface Reflectance – Daily 500m and 1km17.37L2G Surface Reflectance BrowseBands 1-4-3 & 7-2-1
MYD09GQL2G Light Surface Reflectance – Daily 250m18.82L2G Surface Reflectance BrowseBands 1-4-3 & 7-2-1
MYD09GHKL2G Surface Reflectance – Daily 500m18.27N/ABands 1-4-3 & 7-2-1
MYD09GQKL2G Surface Reflectance – Daily 250m25.48N/ABands 1-4-3 & 7-2-1

MODIS / Terra

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
BrowseComments
MOD04_L2L2 Aerosol, 5-Min Swath 10km0.15L2 Aerosol BrowseN/A
MOD09GAL2G Light Surface Reflectance – Daily 500m and 1km17.48L2G Surface Reflectance BrowseBands 1-4-3 & 7-2-1
MOD09GQL2G Light Surface Reflectance – Daily 250m18.91L2G Surface Reflectance BrowseBands 1-4-3 & 7-2-1
MOD09GHKL2G Surface Reflectance – Daily 500m18.34N/ABands 1-4-3 & 7-2-1
MOD09GQKL2G Surface Reflectance – Daily 250m25.31N/ABands 1-4-3 & 7-2-1

AIRS / Aqua

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
Browse
AIRVBRAD_NRTL1B Vis/Near-IR geolocated radiancesN/AN/A
AIRABRAD_NRTL1B AMSU-A1 & AMSU-A2 combined, geolocated & calibrated brightness temperaturesN/AN/A

OMI / Aura

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
Browse
OMSO2NRTbL2 Sulphur Dioxide (SO2) Total Column Swath 13x24 kmN/AN/A

MLS / Aura

Product
(FTP download link)

Description
(Global Master Change Directory link)

Volume (GB/day)Browse
ML2SO2_NRT.003Sulfur Dioxide (SO2) MLS/Aura NRT L2 SO2 Mixing Ratio0.02N/A