Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season
Plot-scale brightness temperature (TB) measurements at 6.9, 19, 37, and 89 GHz were acquired in forest, open, and lake environments near Churchill,Manitoba, Canada with mobile sled-based microwave radiometers during the 2009–2010 winter season. Detailed physical snow measurements within the radiomet...
Published in: | Remote Sensing of Environment |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier
2012
|
Subjects: | |
Online Access: | https://nrl.northumbria.ac.uk/id/eprint/6448/ https://doi.org/10.1016/j.rse.2011.09.021 |
id |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:6448 |
---|---|
record_format |
openpolar |
spelling |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:6448 2023-05-15T15:55:07+02:00 Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season Derksen, Chris Toose, Peter Lemmetyinen, Juha Pulliainen, Jouni Langlois, Alexandre Rutter, Nick Fuller, Mark 2012-02-15 https://nrl.northumbria.ac.uk/id/eprint/6448/ https://doi.org/10.1016/j.rse.2011.09.021 unknown Elsevier Derksen, Chris, Toose, Peter, Lemmetyinen, Juha, Pulliainen, Jouni, Langlois, Alexandre, Rutter, Nick and Fuller, Mark (2012) Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season. Remote Sensing of Environment, 117. pp. 236-248. ISSN 0034-4257 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2012 ftunivnorthumb https://doi.org/10.1016/j.rse.2011.09.021 2022-09-25T05:53:23Z Plot-scale brightness temperature (TB) measurements at 6.9, 19, 37, and 89 GHz were acquired in forest, open, and lake environments near Churchill,Manitoba, Canada with mobile sled-based microwave radiometers during the 2009–2010 winter season. Detailed physical snow measurements within the radiometer footprints were made to relate the microwave signatures to the seasonal evolution of the snowpack, and provide inputs for model simulations with the Helsinki University of Technology (HUT) snow emission model. Large differences in depth, density, and grain size were observed between the three land cover types. Plot-scale simulations with the HUT model showed a wide range in simulation accuracy between sites and frequencies. In general, model performance degradedwhen the effective grain size exceeded 2 mmand/or there was an ice lens present in the pack. HUTmodel performance improvedwhen simulationswere run regionally at the satellite scale (using three proportional land cover tiles: open, forest, and lake) and compared to Advanced Microwave Scanning Radiometer (AMSR-E) measurements. Root mean square error (RMSE) values ranged from approximately 4 to 16 K depending on the frequency, polarization, and land cover composition of the grid cell. Snow water equivalent (SWE) retrievals produced using forward TB simulations with the HUT model in combination with AMSR-E measurements produced RMSE values below 25 mm for the intensive study area. Retrieval errors exceeded 50 mm when the scheme was applied regionally. Article in Journal/Newspaper Churchill Northumbria University, Newcastle: Northumbria Research Link (NRL) Canada Remote Sensing of Environment 117 236 248 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Derksen, Chris Toose, Peter Lemmetyinen, Juha Pulliainen, Jouni Langlois, Alexandre Rutter, Nick Fuller, Mark Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Plot-scale brightness temperature (TB) measurements at 6.9, 19, 37, and 89 GHz were acquired in forest, open, and lake environments near Churchill,Manitoba, Canada with mobile sled-based microwave radiometers during the 2009–2010 winter season. Detailed physical snow measurements within the radiometer footprints were made to relate the microwave signatures to the seasonal evolution of the snowpack, and provide inputs for model simulations with the Helsinki University of Technology (HUT) snow emission model. Large differences in depth, density, and grain size were observed between the three land cover types. Plot-scale simulations with the HUT model showed a wide range in simulation accuracy between sites and frequencies. In general, model performance degradedwhen the effective grain size exceeded 2 mmand/or there was an ice lens present in the pack. HUTmodel performance improvedwhen simulationswere run regionally at the satellite scale (using three proportional land cover tiles: open, forest, and lake) and compared to Advanced Microwave Scanning Radiometer (AMSR-E) measurements. Root mean square error (RMSE) values ranged from approximately 4 to 16 K depending on the frequency, polarization, and land cover composition of the grid cell. Snow water equivalent (SWE) retrievals produced using forward TB simulations with the HUT model in combination with AMSR-E measurements produced RMSE values below 25 mm for the intensive study area. Retrieval errors exceeded 50 mm when the scheme was applied regionally. |
format |
Article in Journal/Newspaper |
author |
Derksen, Chris Toose, Peter Lemmetyinen, Juha Pulliainen, Jouni Langlois, Alexandre Rutter, Nick Fuller, Mark |
author_facet |
Derksen, Chris Toose, Peter Lemmetyinen, Juha Pulliainen, Jouni Langlois, Alexandre Rutter, Nick Fuller, Mark |
author_sort |
Derksen, Chris |
title |
Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
title_short |
Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
title_full |
Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
title_fullStr |
Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
title_full_unstemmed |
Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
title_sort |
evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season |
publisher |
Elsevier |
publishDate |
2012 |
url |
https://nrl.northumbria.ac.uk/id/eprint/6448/ https://doi.org/10.1016/j.rse.2011.09.021 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Churchill |
genre_facet |
Churchill |
op_relation |
Derksen, Chris, Toose, Peter, Lemmetyinen, Juha, Pulliainen, Jouni, Langlois, Alexandre, Rutter, Nick and Fuller, Mark (2012) Evaluation of passive microwave brightness temperature simulations and snow water equivalent retrievals through a winter season. Remote Sensing of Environment, 117. pp. 236-248. ISSN 0034-4257 |
op_doi |
https://doi.org/10.1016/j.rse.2011.09.021 |
container_title |
Remote Sensing of Environment |
container_volume |
117 |
container_start_page |
236 |
op_container_end_page |
248 |
_version_ |
1766390462373953536 |