Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites. A standard snow-sampling procedure was completed after each scan to evaluate local variability in snow layering, depth,...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
International Glaciological Society
2015
|
Subjects: | |
Online Access: | https://nrl.northumbria.ac.uk/id/eprint/21289/ https://doi.org/10.3189/2015JoG14J020 https://nrl.northumbria.ac.uk/id/eprint/21289/1/t14J020.pdf |
id |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:21289 |
---|---|
record_format |
openpolar |
spelling |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:21289 2023-05-15T16:57:38+02:00 Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter King, Joshua Kelly, Richard Kasurak, Andrew Dugauy, Claude Gunn, Grant Rutter, Nick Watts, Tom Derksen, Chris 2015 application/pdf https://nrl.northumbria.ac.uk/id/eprint/21289/ https://doi.org/10.3189/2015JoG14J020 https://nrl.northumbria.ac.uk/id/eprint/21289/1/t14J020.pdf en eng International Glaciological Society https://nrl.northumbria.ac.uk/id/eprint/21289/1/t14J020.pdf King, Joshua, Kelly, Richard, Kasurak, Andrew, Dugauy, Claude, Gunn, Grant, Rutter, Nick, Watts, Tom and Derksen, Chris (2015) Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter. Journal of Glaciology, 61 (226). pp. 267-279. ISSN 0022-1430 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2015 ftunivnorthumb https://doi.org/10.3189/2015JoG14J020 2022-09-25T06:01:12Z During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites. A standard snow-sampling procedure was completed after each scan to evaluate local variability in snow layering, depth, density and water equivalent (SWE) within the scatterometer field of view. The shallow depths and large basal depth hoar encountered presented an opportunity to evaluate backscatter under a set of previously untested conditions. Strong Ku-band response was found with increasing snow depth and snow water equivalent (SWE). In particular, co-polarized vertical backscatter increased by 0.82 dB for every 1 cm increase in SWE (R2 = 0.62). While the result indicated strong potential for Ku-band retrieval of shallow snow properties, it did not characterize the influence of sub-scan variability. An enhanced snow-sampling procedure was introduced to generate detailed characterizations of stratigraphy within the scatterometer field of view using near-infrared photography along the length of a 5m trench. Changes in snow properties along the trench were used to discuss variations in the collocated backscatter response. A pair of contrasting observation sites was used to highlight uncertainties in backscatter response related to short length scale spatial variability in the observed tundra environment. Article in Journal/Newspaper Journal of Glaciology Tundra Northumbria University, Newcastle: Northumbria Research Link (NRL) Journal of Glaciology 61 226 267 279 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences King, Joshua Kelly, Richard Kasurak, Andrew Dugauy, Claude Gunn, Grant Rutter, Nick Watts, Tom Derksen, Chris Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites. A standard snow-sampling procedure was completed after each scan to evaluate local variability in snow layering, depth, density and water equivalent (SWE) within the scatterometer field of view. The shallow depths and large basal depth hoar encountered presented an opportunity to evaluate backscatter under a set of previously untested conditions. Strong Ku-band response was found with increasing snow depth and snow water equivalent (SWE). In particular, co-polarized vertical backscatter increased by 0.82 dB for every 1 cm increase in SWE (R2 = 0.62). While the result indicated strong potential for Ku-band retrieval of shallow snow properties, it did not characterize the influence of sub-scan variability. An enhanced snow-sampling procedure was introduced to generate detailed characterizations of stratigraphy within the scatterometer field of view using near-infrared photography along the length of a 5m trench. Changes in snow properties along the trench were used to discuss variations in the collocated backscatter response. A pair of contrasting observation sites was used to highlight uncertainties in backscatter response related to short length scale spatial variability in the observed tundra environment. |
format |
Article in Journal/Newspaper |
author |
King, Joshua Kelly, Richard Kasurak, Andrew Dugauy, Claude Gunn, Grant Rutter, Nick Watts, Tom Derksen, Chris |
author_facet |
King, Joshua Kelly, Richard Kasurak, Andrew Dugauy, Claude Gunn, Grant Rutter, Nick Watts, Tom Derksen, Chris |
author_sort |
King, Joshua |
title |
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
title_short |
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
title_full |
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
title_fullStr |
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
title_full_unstemmed |
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter |
title_sort |
spatio-temporal influence of tundra snow properties on ku-band (17.2 ghz) backscatter |
publisher |
International Glaciological Society |
publishDate |
2015 |
url |
https://nrl.northumbria.ac.uk/id/eprint/21289/ https://doi.org/10.3189/2015JoG14J020 https://nrl.northumbria.ac.uk/id/eprint/21289/1/t14J020.pdf |
genre |
Journal of Glaciology Tundra |
genre_facet |
Journal of Glaciology Tundra |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/21289/1/t14J020.pdf King, Joshua, Kelly, Richard, Kasurak, Andrew, Dugauy, Claude, Gunn, Grant, Rutter, Nick, Watts, Tom and Derksen, Chris (2015) Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter. Journal of Glaciology, 61 (226). pp. 267-279. ISSN 0022-1430 |
op_doi |
https://doi.org/10.3189/2015JoG14J020 |
container_title |
Journal of Glaciology |
container_volume |
61 |
container_issue |
226 |
container_start_page |
267 |
op_container_end_page |
279 |
_version_ |
1766049196787367936 |