Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG
The Gravity Recovery and Climate Experiment (GRACE) satellites have measured anomalies in the Earth's time-variable gravity field since 2002, allowing for the measurement of the melting of glaciers due to climate change. Many techniques used with GRACE data have difficulty constraining mass cha...
Main Authors: | , |
---|---|
Format: | Still Image |
Language: | unknown |
Published: |
2019
|
Subjects: | |
Online Access: | https://doi.org/10.3389/feart.2019.00171.s001 https://figshare.com/articles/Image_1_Long-Term_and_Inter-annual_Mass_Changes_in_the_Iceland_Ice_Cap_Determined_From_GRACE_Gravity_Using_Slepian_Functions_JPEG/8660846 |
id |
ftfrontimediafig:oai:figshare.com:article/8660846 |
---|---|
record_format |
openpolar |
spelling |
ftfrontimediafig:oai:figshare.com:article/8660846 2023-05-15T16:29:34+02:00 Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG Max von Hippel Christopher Harig 2019-07-04T08:00:33Z https://doi.org/10.3389/feart.2019.00171.s001 https://figshare.com/articles/Image_1_Long-Term_and_Inter-annual_Mass_Changes_in_the_Iceland_Ice_Cap_Determined_From_GRACE_Gravity_Using_Slepian_Functions_JPEG/8660846 unknown doi:10.3389/feart.2019.00171.s001 https://figshare.com/articles/Image_1_Long-Term_and_Inter-annual_Mass_Changes_in_the_Iceland_Ice_Cap_Determined_From_GRACE_Gravity_Using_Slepian_Functions_JPEG/8660846 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change GRACE Slepian Iceland mass loss ice gravity optimization Image Figure 2019 ftfrontimediafig https://doi.org/10.3389/feart.2019.00171.s001 2019-07-10T23:20:52Z The Gravity Recovery and Climate Experiment (GRACE) satellites have measured anomalies in the Earth's time-variable gravity field since 2002, allowing for the measurement of the melting of glaciers due to climate change. Many techniques used with GRACE data have difficulty constraining mass change in small regions, such as Iceland, often requiring broad averaging functions in order to capture trends. These techniques also capture data from nearby regions, causing signal leakage. Alternatively, Slepian functions may solve this problem by optimally concentrating data both in the spatial domain (e.g., Iceland) and spectral domain (i.e., the bandwidth of the data). We use synthetic experiments to show that Slepian functions can capture trends over Iceland without meaningful leakage and influence from ice changes in Greenland. We estimate a mass change over Iceland from GRACE data of approximately -9.3 ± 1.0 Gt/yr between March 2002 and November 2016, with an acceleration of 1.1 ± 0.5 Gt/yr 2 . Still Image Greenland Ice cap Iceland Frontiers: Figshare Greenland |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change GRACE Slepian Iceland mass loss ice gravity optimization |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change GRACE Slepian Iceland mass loss ice gravity optimization Max von Hippel Christopher Harig Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change GRACE Slepian Iceland mass loss ice gravity optimization |
description |
The Gravity Recovery and Climate Experiment (GRACE) satellites have measured anomalies in the Earth's time-variable gravity field since 2002, allowing for the measurement of the melting of glaciers due to climate change. Many techniques used with GRACE data have difficulty constraining mass change in small regions, such as Iceland, often requiring broad averaging functions in order to capture trends. These techniques also capture data from nearby regions, causing signal leakage. Alternatively, Slepian functions may solve this problem by optimally concentrating data both in the spatial domain (e.g., Iceland) and spectral domain (i.e., the bandwidth of the data). We use synthetic experiments to show that Slepian functions can capture trends over Iceland without meaningful leakage and influence from ice changes in Greenland. We estimate a mass change over Iceland from GRACE data of approximately -9.3 ± 1.0 Gt/yr between March 2002 and November 2016, with an acceleration of 1.1 ± 0.5 Gt/yr 2 . |
format |
Still Image |
author |
Max von Hippel Christopher Harig |
author_facet |
Max von Hippel Christopher Harig |
author_sort |
Max von Hippel |
title |
Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
title_short |
Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
title_full |
Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
title_fullStr |
Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
title_full_unstemmed |
Image_1_Long-Term and Inter-annual Mass Changes in the Iceland Ice Cap Determined From GRACE Gravity Using Slepian Functions.JPEG |
title_sort |
image_1_long-term and inter-annual mass changes in the iceland ice cap determined from grace gravity using slepian functions.jpeg |
publishDate |
2019 |
url |
https://doi.org/10.3389/feart.2019.00171.s001 https://figshare.com/articles/Image_1_Long-Term_and_Inter-annual_Mass_Changes_in_the_Iceland_Ice_Cap_Determined_From_GRACE_Gravity_Using_Slepian_Functions_JPEG/8660846 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice cap Iceland |
genre_facet |
Greenland Ice cap Iceland |
op_relation |
doi:10.3389/feart.2019.00171.s001 https://figshare.com/articles/Image_1_Long-Term_and_Inter-annual_Mass_Changes_in_the_Iceland_Ice_Cap_Determined_From_GRACE_Gravity_Using_Slepian_Functions_JPEG/8660846 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2019.00171.s001 |
_version_ |
1766019271861731328 |