2014 summer Arctic sea ice thickness and concentration from shipborne observations
A series of shipborne sea ice observations were performed during the Chinese National Arctic Research Expedition in the Pacific Arctic sector between 2 August 2014 and 1 September 2014. Undeformed sea ice thickness (SIT) as well as area fractions of open water, melt pond, and sea ice (Aw, Ap, and Ai...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2019-08-01
|
| Series: | International Journal of Digital Earth |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17538947.2017.1421720 |
| _version_ | 1827811207449411584 |
|---|---|
| author | Qingkai Wang Zhijun Li Peng Lu Ruibo Lei Bin Cheng |
| author_facet | Qingkai Wang Zhijun Li Peng Lu Ruibo Lei Bin Cheng |
| author_sort | Qingkai Wang |
| collection | DOAJ |
| description | A series of shipborne sea ice observations were performed during the Chinese National Arctic Research Expedition in the Pacific Arctic sector between 2 August 2014 and 1 September 2014. Undeformed sea ice thickness (SIT) as well as area fractions of open water, melt pond, and sea ice (Aw, Ap, and Ai) were monitored using downward-oriented and oblique-oriented cameras. The results show that SIT varied between 20 and 220 cm throughout the whole cruise, with the average and standard deviation equaling 104.9 and 29.1 cm, respectively. Mean Aw and Ai were 0.52 and 0.44 in the marginal ice zone, respectively, while mean Aw decreased to 0.23 and mean Ai increased to 0.73 in the pack ice zone. Limited variation between 0 and 0.32 in Ap was seen throughout the whole cruise. Shipborne sea ice concentration was then rectified and mapped across a large transect to validate estimates derived from the satellite sensors Special Sensor Microwave Imager/Sounder (SSMIS) (25 km) and AMSR2 (25 km). Overestimations were 9.5% and 9.9% for SSMIS and AMSR2 compared with measurements, respectively. The mean areal broadband surface albedo based on shipborne survey increased from 0.07 to 0.66 along the transect between 72°N and 81°N. |
| first_indexed | 2024-03-11T23:02:01Z |
| format | Article |
| id | doaj.art-d03cc336846c435d82e518e10f8a695b |
| institution | Directory Open Access Journal |
| issn | 1753-8947 1753-8955 |
| language | English |
| last_indexed | 2024-03-11T23:02:01Z |
| publishDate | 2019-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Digital Earth |
| spelling | doaj.art-d03cc336846c435d82e518e10f8a695b2023-09-21T14:38:06ZengTaylor & Francis GroupInternational Journal of Digital Earth1753-89471753-89552019-08-0112893194710.1080/17538947.2017.142172014217202014 summer Arctic sea ice thickness and concentration from shipborne observationsQingkai Wang0Zhijun Li1Peng Lu2Ruibo Lei3Bin Cheng4Dalian University of TechnologyDalian University of TechnologyDalian University of TechnologyPolar Research Institute of ChinaFinnish Meteorological InstituteA series of shipborne sea ice observations were performed during the Chinese National Arctic Research Expedition in the Pacific Arctic sector between 2 August 2014 and 1 September 2014. Undeformed sea ice thickness (SIT) as well as area fractions of open water, melt pond, and sea ice (Aw, Ap, and Ai) were monitored using downward-oriented and oblique-oriented cameras. The results show that SIT varied between 20 and 220 cm throughout the whole cruise, with the average and standard deviation equaling 104.9 and 29.1 cm, respectively. Mean Aw and Ai were 0.52 and 0.44 in the marginal ice zone, respectively, while mean Aw decreased to 0.23 and mean Ai increased to 0.73 in the pack ice zone. Limited variation between 0 and 0.32 in Ap was seen throughout the whole cruise. Shipborne sea ice concentration was then rectified and mapped across a large transect to validate estimates derived from the satellite sensors Special Sensor Microwave Imager/Sounder (SSMIS) (25 km) and AMSR2 (25 km). Overestimations were 9.5% and 9.9% for SSMIS and AMSR2 compared with measurements, respectively. The mean areal broadband surface albedo based on shipborne survey increased from 0.07 to 0.66 along the transect between 72°N and 81°N.http://dx.doi.org/10.1080/17538947.2017.1421720arctic sea iceshipborne photographyremote sensingsurface albedosummer melt |
| spellingShingle | Qingkai Wang Zhijun Li Peng Lu Ruibo Lei Bin Cheng 2014 summer Arctic sea ice thickness and concentration from shipborne observations International Journal of Digital Earth arctic sea ice shipborne photography remote sensing surface albedo summer melt |
| title | 2014 summer Arctic sea ice thickness and concentration from shipborne observations |
| title_full | 2014 summer Arctic sea ice thickness and concentration from shipborne observations |
| title_fullStr | 2014 summer Arctic sea ice thickness and concentration from shipborne observations |
| title_full_unstemmed | 2014 summer Arctic sea ice thickness and concentration from shipborne observations |
| title_short | 2014 summer Arctic sea ice thickness and concentration from shipborne observations |
| title_sort | 2014 summer arctic sea ice thickness and concentration from shipborne observations |
| topic | arctic sea ice shipborne photography remote sensing surface albedo summer melt |
| url | http://dx.doi.org/10.1080/17538947.2017.1421720 |
| work_keys_str_mv | AT qingkaiwang 2014summerarcticseaicethicknessandconcentrationfromshipborneobservations AT zhijunli 2014summerarcticseaicethicknessandconcentrationfromshipborneobservations AT penglu 2014summerarcticseaicethicknessandconcentrationfromshipborneobservations AT ruibolei 2014summerarcticseaicethicknessandconcentrationfromshipborneobservations AT bincheng 2014summerarcticseaicethicknessandconcentrationfromshipborneobservations |