The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet
The NASA MODIS MOD10A1 snow albedo product has enabled numerous glaciological applications. The temporal consistency of MODIS albedo is critical to obtaining reliable results from this 22-year time series. The orbit of Terra began to drift toward earlier acquisition times after the final inclination...
Published in: | Science of Remote Sensing |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2024
|
Subjects: | |
Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724_1/component/file_5025728/5025724.pdf |
id |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5025724 |
---|---|
record_format |
openpolar |
spelling |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5025724 2024-06-02T08:07:18+00:00 The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet Feng, S. Wehrlé, A. Cook, J. Anesio, A. Box, J. Benning, L. Tranter, M. 2024 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724_1/component/file_5025728/5025724.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.1016/j.srs.2023.100116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724_1/component/file_5025728/5025724.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Science of Remote Sensing info:eu-repo/semantics/article 2024 ftgfzpotsdam https://doi.org/10.1016/j.srs.2023.100116 2024-05-07T05:00:05Z The NASA MODIS MOD10A1 snow albedo product has enabled numerous glaciological applications. The temporal consistency of MODIS albedo is critical to obtaining reliable results from this 22-year time series. The orbit of Terra began to drift toward earlier acquisition times after the final inclination adjustment maneuver to maintain its nominal orbit by NASA on 27 February 2020, which may introduce biases that compromise the accuracy of quantitative time series analysis as the drift continues. Here, we evaluate the impact of Terra's orbital drift by comparing the differences between the Terra MODIS albedo and albedo products derived from Aqua MODIS, harmonized Landsat and Sentinel 2, Sentinel 3, and PROMICE (Programme for Monitoring of the Greenland Ice Sheet) ground measurements over the Greenland ice sheet. Our results suggest that the influence of orbital drift on albedo is small (+0.01 in 2020), but potentially biased for time series analysis. Our analysis also finds that the drift effect that causes earlier image acquisition time may lead to more apparently cloudy pixels and thus effectively reduce the Terra MODIS temporal resolution over Greenland. Article in Journal/Newspaper Greenland Ice Sheet GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Greenland Science of Remote Sensing 9 100116 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
The NASA MODIS MOD10A1 snow albedo product has enabled numerous glaciological applications. The temporal consistency of MODIS albedo is critical to obtaining reliable results from this 22-year time series. The orbit of Terra began to drift toward earlier acquisition times after the final inclination adjustment maneuver to maintain its nominal orbit by NASA on 27 February 2020, which may introduce biases that compromise the accuracy of quantitative time series analysis as the drift continues. Here, we evaluate the impact of Terra's orbital drift by comparing the differences between the Terra MODIS albedo and albedo products derived from Aqua MODIS, harmonized Landsat and Sentinel 2, Sentinel 3, and PROMICE (Programme for Monitoring of the Greenland Ice Sheet) ground measurements over the Greenland ice sheet. Our results suggest that the influence of orbital drift on albedo is small (+0.01 in 2020), but potentially biased for time series analysis. Our analysis also finds that the drift effect that causes earlier image acquisition time may lead to more apparently cloudy pixels and thus effectively reduce the Terra MODIS temporal resolution over Greenland. |
format |
Article in Journal/Newspaper |
author |
Feng, S. Wehrlé, A. Cook, J. Anesio, A. Box, J. Benning, L. Tranter, M. |
spellingShingle |
Feng, S. Wehrlé, A. Cook, J. Anesio, A. Box, J. Benning, L. Tranter, M. The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
author_facet |
Feng, S. Wehrlé, A. Cook, J. Anesio, A. Box, J. Benning, L. Tranter, M. |
author_sort |
Feng, S. |
title |
The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
title_short |
The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
title_full |
The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
title_fullStr |
The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
title_full_unstemmed |
The apparent effect of orbital drift on time series of MODIS MOD10A1 albedo on the Greenland ice sheet |
title_sort |
apparent effect of orbital drift on time series of modis mod10a1 albedo on the greenland ice sheet |
publishDate |
2024 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724_1/component/file_5025728/5025724.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Science of Remote Sensing |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.srs.2023.100116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025724_1/component/file_5025728/5025724.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1016/j.srs.2023.100116 |
container_title |
Science of Remote Sensing |
container_volume |
9 |
container_start_page |
100116 |
_version_ |
1800752365144375296 |