TY - GEN
T1 - Melt Detection over Greenland Using Smap Radiometer Observations
AU - Mousavi, Seyedmohammad
AU - Colliander, Andreas
AU - Miller, Julie
AU - Entekhabi, Dara
AU - Johnson, Joel T.
AU - Shuman, Christopher A.
AU - Kimball, John S.
AU - Courville, Zoe R.
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/26
Y1 - 2020/9/26
N2 - Microwave measurements have been previously used to detect melt events due to their sensitivity to the presence of liquid water in snow. Since NASA's SMAP mission offers a valuable set of low frequency radiometer measurements, SMAP measurements have been used as a tool to detect melt events. SMAP's L-band radiometer also covers virtually the entire Greenland ice sheet twice daily. The overpasses center on morning and evening hours as the satellite is on a 6AM/6PM equator-crossing orbit, and the spatial resolution of the instrument is about 40 km. In this paper, the response of L-band measurements to surface melting of the ice sheet from 2015 through 2019 melt seasons is investigated. It is shown that the Greenland ice sheet experienced an unusually strong melt event at the end of July 2019, which extended the melt area across much of dry snow zone of the ice sheet over a period of two days.
AB - Microwave measurements have been previously used to detect melt events due to their sensitivity to the presence of liquid water in snow. Since NASA's SMAP mission offers a valuable set of low frequency radiometer measurements, SMAP measurements have been used as a tool to detect melt events. SMAP's L-band radiometer also covers virtually the entire Greenland ice sheet twice daily. The overpasses center on morning and evening hours as the satellite is on a 6AM/6PM equator-crossing orbit, and the spatial resolution of the instrument is about 40 km. In this paper, the response of L-band measurements to surface melting of the ice sheet from 2015 through 2019 melt seasons is investigated. It is shown that the Greenland ice sheet experienced an unusually strong melt event at the end of July 2019, which extended the melt area across much of dry snow zone of the ice sheet over a period of two days.
KW - Greenland
KW - SMAP radiometer
KW - ice sheet
KW - melt events
KW - microwave remote sensing
UR - http://www.scopus.com/inward/record.url?scp=85102011774&partnerID=8YFLogxK
U2 - 10.1109/IGARSS39084.2020.9323626
DO - 10.1109/IGARSS39084.2020.9323626
M3 - Conference contribution
AN - SCOPUS:85102011774
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2972
EP - 2974
BT - 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020
Y2 - 26 September 2020 through 2 October 2020
ER -