Brief communication: Mapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time series

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dc.contributor.authorMiller, Julie Z.
dc.contributor.authorLong, David G.
dc.contributor.authorJezek, Kenneth C.
dc.contributor.authorJohnson, Joel T.
dc.contributor.authorBrodzik, Mary J.
dc.contributor.authorShuman, Christopher
dc.contributor.authorKoenig, Lora S.
dc.contributor.authorScambos, Ted A.
dc.date.accessioned2022-02-15T12:20:40Z
dc.date.available2022-02-15T12:20:40Z
dc.date.issued2020-09-02
dc.description.abstractEnhanced-resolution L-band brightness temperature (Tʙ) image time series generated from observations collected over the Greenland Ice Sheet by NASA’s Soil Moisture Active Passive (SMAP) satellite are used to map Green land’s perennial firn aquifers from space. Exponentially decreasing L-band Tʙ signatures are correlated with perennial firn aquifer areas identified via the Center for Remote Sensing of Ice Sheets (CReSIS) Multi-Channel Coherent Radar Depth Sounder (MCoRDS) that was flown by NASA’s Operation IceBridge (OIB) campaign. An empirical algorithm to map extent is developed by fitting these signatures to a set of sigmoidal curves. During the spring of 2016, perennial firn aquifer areas are found to extend over ∼ 66 000 km².en_US
dc.description.sponsorshipJulie Z. Miller would like to thank the Byrd Postdoctoral Fellowship Program. We would like to thank Dorothy Hall for providing the IST image time series very early in the study and Clement Miège for providing the MCoRDS-derived perennial firn aquifer locations. This research has been supported by the NASA Instrument Incubator Program (no. NNX14AE68G) and the NASA Cryospheric Science Program (no. 80NSSC18K0550) under grants to The Ohio State University and by the NASA Cryospheric Science Program (no. 80NSSC18K1055) and the NSF Antarctic Glaciol ogy Program (no. PLR-1745116) under grants to the University of Colorado. Additional support was provided by NASA Headquar ters Cryospheric Science Program. Development and production of the enhanced-resolution SMAP data used for this research was supported by NASA ROSES Program Element “Science Utilization of Soil Moisture Active Passive Mission” under grants to Brigham Young University (no. NNX16AN01G) and the University of Col orado at Boulder (no. NNX16AN02G).en_US
dc.description.urihttps://tc.copernicus.org/articles/14/2809/2020/en_US
dc.format.extent9 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2kiog-ewnv
dc.identifier.citationMiller, Julie Z. et al. Brief communication: Mapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time series. The Cryosphere 14 (Sept. 2, 2020). https://doi.org/10.5194/tc-14-2809-2020.en_US
dc.identifier.urihttps://doi.org/10.5194/tc-14-2809-2020
dc.identifier.urihttp://hdl.handle.net/11603/24266
dc.language.isoen_USen_US
dc.publisherEGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.titleBrief communication: Mapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time seriesen_US
dc.title.alternativeMapping Greenland's perennial firn aquifers using enhanced-resolution L-band brightness temperature image time series
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-9606-767Xen_US

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