A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY

Seyedmohammad Mousavi; Andreas Colliander; Julie Z. Miller; John S. Kimball

doi:10.1109/IGARSS47720.2021.9553899

A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY

Seyedmohammad Mousavi, Andreas Colliander, Julie Z. Miller, John S. Kimball

Numeric Terradynamic Simulation Group

Research output: Contribution to conference › Paper › peer-review

Abstract

Low frequency microwave measurements have been used to gain insight into what happens deep inside ice sheets for some time. In this paper, the response of SMAP (Soil Moisture Active Passive) L-band measurements to surface melting of the ice sheet from 2015 through 2019 is investigated. SMAP covers virtually the entire Antarctica ice sheet twice a day with its L-band (1.4 GHz) radiometer. The overpasses center on morning and evening hours as the satellite is on a 6 AM/6PM equator-crossing orbit. The spatial resolution of the instrument is about 40 km. We applied a newly developed geophysical model-based algorithm to detect snow wetness, which can be used as an indicator of melt extent and intensity. It is shown that the ice sheet experienced extensive surface melting during the 2015-2016 melt season (~10% melt extent), and also underwent intensive melting in the 2019-2020 season (median of 0.3% snow wetness), particularity on the West Antarctic Ice Sheet.

Original language	English
Pages	5536-5539
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS47720.2021.9553899
State	Published - 2021
Event	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: Jul 12 2021 → Jul 16 2021

Conference

Conference	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/Territory	Belgium
City	Brussels
Period	07/12/21 → 07/16/21

Keywords

Antarctica
SMAP radiometer
ice sheet
melt events
microwave remote sensing

Access to Document

10.1109/IGARSS47720.2021.9553899

Cite this

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title = "A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY",

abstract = "Low frequency microwave measurements have been used to gain insight into what happens deep inside ice sheets for some time. In this paper, the response of SMAP (Soil Moisture Active Passive) L-band measurements to surface melting of the ice sheet from 2015 through 2019 is investigated. SMAP covers virtually the entire Antarctica ice sheet twice a day with its L-band (1.4 GHz) radiometer. The overpasses center on morning and evening hours as the satellite is on a 6 AM/6PM equator-crossing orbit. The spatial resolution of the instrument is about 40 km. We applied a newly developed geophysical model-based algorithm to detect snow wetness, which can be used as an indicator of melt extent and intensity. It is shown that the ice sheet experienced extensive surface melting during the 2015-2016 melt season (~10% melt extent), and also underwent intensive melting in the 2019-2020 season (median of 0.3% snow wetness), particularity on the West Antarctic Ice Sheet.",

keywords = "Antarctica, SMAP radiometer, ice sheet, melt events, microwave remote sensing",

author = "Seyedmohammad Mousavi and Andreas Colliander and Miller, {Julie Z.} and Kimball, {John S.}",

note = "Publisher Copyright: 978-1-6654-0369-6/21/$31.00 {\textcopyright}2021 IEEE; 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 ; Conference date: 12-07-2021 Through 16-07-2021",

year = "2021",

doi = "10.1109/IGARSS47720.2021.9553899",

language = "English",

pages = "5536--5539",

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Mousavi, S, Colliander, A, Miller, JZ & Kimball, JS 2021, 'A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY', Paper presented at 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium, 07/12/21 - 07/16/21 pp. 5536-5539. https://doi.org/10.1109/IGARSS47720.2021.9553899

A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY. / Mousavi, Seyedmohammad; Colliander, Andreas; Miller, Julie Z. et al.
2021. 5536-5539 Paper presented at 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium.

Research output: Contribution to conference › Paper › peer-review

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AU - Mousavi, Seyedmohammad

AU - Colliander, Andreas

AU - Miller, Julie Z.

AU - Kimball, John S.

PY - 2021

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N2 - Low frequency microwave measurements have been used to gain insight into what happens deep inside ice sheets for some time. In this paper, the response of SMAP (Soil Moisture Active Passive) L-band measurements to surface melting of the ice sheet from 2015 through 2019 is investigated. SMAP covers virtually the entire Antarctica ice sheet twice a day with its L-band (1.4 GHz) radiometer. The overpasses center on morning and evening hours as the satellite is on a 6 AM/6PM equator-crossing orbit. The spatial resolution of the instrument is about 40 km. We applied a newly developed geophysical model-based algorithm to detect snow wetness, which can be used as an indicator of melt extent and intensity. It is shown that the ice sheet experienced extensive surface melting during the 2015-2016 melt season (~10% melt extent), and also underwent intensive melting in the 2019-2020 season (median of 0.3% snow wetness), particularity on the West Antarctic Ice Sheet.

AB - Low frequency microwave measurements have been used to gain insight into what happens deep inside ice sheets for some time. In this paper, the response of SMAP (Soil Moisture Active Passive) L-band measurements to surface melting of the ice sheet from 2015 through 2019 is investigated. SMAP covers virtually the entire Antarctica ice sheet twice a day with its L-band (1.4 GHz) radiometer. The overpasses center on morning and evening hours as the satellite is on a 6 AM/6PM equator-crossing orbit. The spatial resolution of the instrument is about 40 km. We applied a newly developed geophysical model-based algorithm to detect snow wetness, which can be used as an indicator of melt extent and intensity. It is shown that the ice sheet experienced extensive surface melting during the 2015-2016 melt season (~10% melt extent), and also underwent intensive melting in the 2019-2020 season (median of 0.3% snow wetness), particularity on the West Antarctic Ice Sheet.

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A NEW GEOPHYSICAL MODEL BASED ALGORITHM TO DETCET MELT EVENTS OVER THE ANTRACTIC ICE SHEET USING SMAP MICROWAVE RADIOMETRY

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