CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019
This paper documents the retrieval of significant ocean surface wave heights in the Arctic Ocean from CryoSat-2 data. We use a semi-analytical model for an idealised synthetic aperture satellite radar or pulse-limited radar altimeter echo power. We develop a processing methodology that specifically...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/13/20/4166 |
| _version_ | 1827678582613213184 |
|---|---|
| author | Harold Heorton Michel Tsamados Thomas Armitage Andy Ridout Jack Landy |
| author_facet | Harold Heorton Michel Tsamados Thomas Armitage Andy Ridout Jack Landy |
| author_sort | Harold Heorton |
| collection | DOAJ |
| description | This paper documents the retrieval of significant ocean surface wave heights in the Arctic Ocean from CryoSat-2 data. We use a semi-analytical model for an idealised synthetic aperture satellite radar or pulse-limited radar altimeter echo power. We develop a processing methodology that specifically considers both the Synthetic Aperture and Pulse Limited modes of the radar that change close to the sea ice edge within the Arctic Ocean. All CryoSat-2 echoes to date were matched by our idealised echo revealing wave heights over the period 2011–2019. Our retrieved data were contrasted to existing processing of CryoSat-2 data and wave model data, showing the improved fidelity and accuracy of the semi-analytical echo power model and the newly developed processing methods. We contrasted our data to in situ wave buoy measurements, showing improved data retrievals in seasonal sea ice covered seas. We have shown the importance of directly considering the correct satellite mode of operation in the Arctic Ocean where SAR is the dominant operating mode. Our new data are of specific use for wave model validation close to the sea ice edge and is available at the link in the data availability statement. |
| first_indexed | 2024-03-10T06:13:08Z |
| format | Article |
| id | doaj.art-418cb90bbb6f4936bb1b8fa66cb961db |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T06:13:08Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-418cb90bbb6f4936bb1b8fa66cb961db2023-11-22T19:55:11ZengMDPI AGRemote Sensing2072-42922021-10-011320416610.3390/rs13204166CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019Harold Heorton0Michel Tsamados1Thomas Armitage2Andy Ridout3Jack Landy4Centre for Polar Observation and Modelling, University College London, London WC1E 6BS, UKCentre for Polar Observation and Modelling, University College London, London WC1E 6BS, UKJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91125, USACentre for Polar Observation and Modelling, University College London, London WC1E 6BS, UKBristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol BS8 1TH, UKThis paper documents the retrieval of significant ocean surface wave heights in the Arctic Ocean from CryoSat-2 data. We use a semi-analytical model for an idealised synthetic aperture satellite radar or pulse-limited radar altimeter echo power. We develop a processing methodology that specifically considers both the Synthetic Aperture and Pulse Limited modes of the radar that change close to the sea ice edge within the Arctic Ocean. All CryoSat-2 echoes to date were matched by our idealised echo revealing wave heights over the period 2011–2019. Our retrieved data were contrasted to existing processing of CryoSat-2 data and wave model data, showing the improved fidelity and accuracy of the semi-analytical echo power model and the newly developed processing methods. We contrasted our data to in situ wave buoy measurements, showing improved data retrievals in seasonal sea ice covered seas. We have shown the importance of directly considering the correct satellite mode of operation in the Arctic Ocean where SAR is the dominant operating mode. Our new data are of specific use for wave model validation close to the sea ice edge and is available at the link in the data availability statement.https://www.mdpi.com/2072-4292/13/20/4166CryoSat2wavesoceanography |
| spellingShingle | Harold Heorton Michel Tsamados Thomas Armitage Andy Ridout Jack Landy CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 Remote Sensing CryoSat2 waves oceanography |
| title | CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 |
| title_full | CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 |
| title_fullStr | CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 |
| title_full_unstemmed | CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 |
| title_short | CryoSat-2 Significant Wave Height in Polar Oceans Derived Using a Semi-Analytical Model of Synthetic Aperture Radar 2011–2019 |
| title_sort | cryosat 2 significant wave height in polar oceans derived using a semi analytical model of synthetic aperture radar 2011 2019 |
| topic | CryoSat2 waves oceanography |
| url | https://www.mdpi.com/2072-4292/13/20/4166 |
| work_keys_str_mv | AT haroldheorton cryosat2significantwaveheightinpolaroceansderivedusingasemianalyticalmodelofsyntheticapertureradar20112019 AT micheltsamados cryosat2significantwaveheightinpolaroceansderivedusingasemianalyticalmodelofsyntheticapertureradar20112019 AT thomasarmitage cryosat2significantwaveheightinpolaroceansderivedusingasemianalyticalmodelofsyntheticapertureradar20112019 AT andyridout cryosat2significantwaveheightinpolaroceansderivedusingasemianalyticalmodelofsyntheticapertureradar20112019 AT jacklandy cryosat2significantwaveheightinpolaroceansderivedusingasemianalyticalmodelofsyntheticapertureradar20112019 |