Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean
Abstract This study investigates the contribution of external forcings on global and regional ocean wave height change during 1961–2020. Historical significant wave height (Hs) produced for different CMIP6 external forcings and preindustrial control conditions following the Detection and Attribution...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-03-01
|
| Series: | Geophysical Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2023GL106544 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850272126071734272 |
|---|---|
| author | Anindita Patra Guillaume Dodet Seung‐Ki Min Antoine Hochet |
| author_facet | Anindita Patra Guillaume Dodet Seung‐Ki Min Antoine Hochet |
| author_sort | Anindita Patra |
| collection | DOAJ |
| description | Abstract This study investigates the contribution of external forcings on global and regional ocean wave height change during 1961–2020. Historical significant wave height (Hs) produced for different CMIP6 external forcings and preindustrial control conditions following the Detection and Attribution Model Intercomparison Project (DAMIP) are employed. The internal variability ranges are compared with different external forcing scenario. Statistically significant linear trends in Hs computed over regional ocean basins are found to be mostly associated with anthropogenic forcings: greenhouse gas‐only (GHG) and aerosol‐only (AER) forcing. For Hs, GHG signals are robustly detected and dominant for most of the global ocean, except over North pacific and South Atlantic, where AER signals are dominant. These results are supported by multi‐model analysis for wind speed. The remarkable increase in Hs over the Arctic (22.3%) and Southern (8.2%) Ocean can be attributed to GHG induced sea‐ice depletion and larger effective fetch along with wind speed increase. |
| format | Article |
| id | doaj-art-04e86385a7e6429082c169b07d07e14f |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-04e86385a7e6429082c169b07d07e14f2025-08-20T01:51:57ZengWileyGeophysical Research Letters0094-82761944-80072024-03-01516n/an/a10.1029/2023GL106544Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar OceanAnindita Patra0Guillaume Dodet1Seung‐Ki Min2Antoine Hochet3Laboratoire d’Océanographie Physique et Spatiale Univ Brest CNRS IRD Ifremer Brest FranceLaboratoire d’Océanographie Physique et Spatiale Univ Brest CNRS IRD Ifremer Brest FranceDivision of Environmental Science and Engineering Pohang University of Science and Technology Pohang South KoreaLaboratoire d’Océanographie Physique et Spatiale Univ Brest CNRS IRD Ifremer Brest FranceAbstract This study investigates the contribution of external forcings on global and regional ocean wave height change during 1961–2020. Historical significant wave height (Hs) produced for different CMIP6 external forcings and preindustrial control conditions following the Detection and Attribution Model Intercomparison Project (DAMIP) are employed. The internal variability ranges are compared with different external forcing scenario. Statistically significant linear trends in Hs computed over regional ocean basins are found to be mostly associated with anthropogenic forcings: greenhouse gas‐only (GHG) and aerosol‐only (AER) forcing. For Hs, GHG signals are robustly detected and dominant for most of the global ocean, except over North pacific and South Atlantic, where AER signals are dominant. These results are supported by multi‐model analysis for wind speed. The remarkable increase in Hs over the Arctic (22.3%) and Southern (8.2%) Ocean can be attributed to GHG induced sea‐ice depletion and larger effective fetch along with wind speed increase.https://doi.org/10.1029/2023GL106544CMIP6/DAMIPdetection of anthropogenic signalglobal significant wave heightArctic and Antarctic Oceansea‐ice and wind speedgreenhouse gas and aerosol forcing |
| spellingShingle | Anindita Patra Guillaume Dodet Seung‐Ki Min Antoine Hochet Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean Geophysical Research Letters CMIP6/DAMIP detection of anthropogenic signal global significant wave height Arctic and Antarctic Ocean sea‐ice and wind speed greenhouse gas and aerosol forcing |
| title | Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean |
| title_full | Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean |
| title_fullStr | Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean |
| title_full_unstemmed | Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean |
| title_short | Quantifying Anthropogenic Influences on Global Wave Height Trend During 1961–2020 With Focus on Polar Ocean |
| title_sort | quantifying anthropogenic influences on global wave height trend during 1961 2020 with focus on polar ocean |
| topic | CMIP6/DAMIP detection of anthropogenic signal global significant wave height Arctic and Antarctic Ocean sea‐ice and wind speed greenhouse gas and aerosol forcing |
| url | https://doi.org/10.1029/2023GL106544 |
| work_keys_str_mv | AT aninditapatra quantifyinganthropogenicinfluencesonglobalwaveheighttrendduring19612020withfocusonpolarocean AT guillaumedodet quantifyinganthropogenicinfluencesonglobalwaveheighttrendduring19612020withfocusonpolarocean AT seungkimin quantifyinganthropogenicinfluencesonglobalwaveheighttrendduring19612020withfocusonpolarocean AT antoinehochet quantifyinganthropogenicinfluencesonglobalwaveheighttrendduring19612020withfocusonpolarocean |