Historical record of upwelling-favorable winds in Southern Benguela 1833–2014
Abstract As a result of the high volume of maritime traffic along the coasts of Namibia and western South Africa, mariners recorded numerous in-situ wind observations since early times. Many of these historical data are currently available through the International Comprehensive Ocean-Atmosphere Dat...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-025-00925-0 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832571841145733120 |
|---|---|
| author | David Gallego Ricardo García-Herrera Folly Serge Tomety M. Carmen Álvarez-Castro Cristina Peña-Ortiz |
| author_facet | David Gallego Ricardo García-Herrera Folly Serge Tomety M. Carmen Álvarez-Castro Cristina Peña-Ortiz |
| author_sort | David Gallego |
| collection | DOAJ |
| description | Abstract As a result of the high volume of maritime traffic along the coasts of Namibia and western South Africa, mariners recorded numerous in-situ wind observations since early times. Many of these historical data are currently available through the International Comprehensive Ocean-Atmosphere Data Set (ICOADS). Here, we make use of these historical data to develop an instrumental index for the characterization of the upwelling-favorable winds over the southern Benguela Upwelling System from 1833 to 2014. Our results suggest that upwelling in this region has increased since the mid-1980s, in good agreement with previous research. However, when the entire period is considered, our index does not evidence a long-term trend but a multidecadal variability with an oscillation period between 20 and 30 years. We found a significant influence of ENSO exerted through the modulation of the position of the South Atlantic high-pressure system. However, this teleconnection may be highly non-stationary. |
| format | Article |
| id | doaj-art-19bd06fa00b142c2833e23d24c85e009 |
| institution | Kabale University |
| issn | 2397-3722 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-19bd06fa00b142c2833e23d24c85e0092025-02-02T12:14:41ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-01-018111010.1038/s41612-025-00925-0Historical record of upwelling-favorable winds in Southern Benguela 1833–2014David Gallego0Ricardo García-Herrera1Folly Serge Tomety2M. Carmen Álvarez-Castro3Cristina Peña-Ortiz4Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de OlavideDepartamento de Física de la Tierra y Astrofísica, Universidad ComplutenseDepartment of Oceanography, Nansen Tutu Center, University of Cape Town, RondeboschDepartamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de OlavideDepartamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de OlavideAbstract As a result of the high volume of maritime traffic along the coasts of Namibia and western South Africa, mariners recorded numerous in-situ wind observations since early times. Many of these historical data are currently available through the International Comprehensive Ocean-Atmosphere Data Set (ICOADS). Here, we make use of these historical data to develop an instrumental index for the characterization of the upwelling-favorable winds over the southern Benguela Upwelling System from 1833 to 2014. Our results suggest that upwelling in this region has increased since the mid-1980s, in good agreement with previous research. However, when the entire period is considered, our index does not evidence a long-term trend but a multidecadal variability with an oscillation period between 20 and 30 years. We found a significant influence of ENSO exerted through the modulation of the position of the South Atlantic high-pressure system. However, this teleconnection may be highly non-stationary.https://doi.org/10.1038/s41612-025-00925-0 |
| spellingShingle | David Gallego Ricardo García-Herrera Folly Serge Tomety M. Carmen Álvarez-Castro Cristina Peña-Ortiz Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 npj Climate and Atmospheric Science |
| title | Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 |
| title_full | Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 |
| title_fullStr | Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 |
| title_full_unstemmed | Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 |
| title_short | Historical record of upwelling-favorable winds in Southern Benguela 1833–2014 |
| title_sort | historical record of upwelling favorable winds in southern benguela 1833 2014 |
| url | https://doi.org/10.1038/s41612-025-00925-0 |
| work_keys_str_mv | AT davidgallego historicalrecordofupwellingfavorablewindsinsouthernbenguela18332014 AT ricardogarciaherrera historicalrecordofupwellingfavorablewindsinsouthernbenguela18332014 AT follysergetomety historicalrecordofupwellingfavorablewindsinsouthernbenguela18332014 AT mcarmenalvarezcastro historicalrecordofupwellingfavorablewindsinsouthernbenguela18332014 AT cristinapenaortiz historicalrecordofupwellingfavorablewindsinsouthernbenguela18332014 |