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Tchipalanga, Pedro Cláver Mota; Ostrowski, Marek; Dengler, Marcus (2018): Physical Oceanography on the Angolan continental shelf and Cabinda. PANGAEA, https://doi.org/10.1594/PANGAEA.886492, Supplement to: Tchipalanga, Pedro Cláver Mota; Dengler, Marcus; Brandt, Peter; Kopte, Robert; Macuéria, Marisa Francisca de; Coelho, Paulo; Ostrowski, Marek; Keenlyside, Noel (2018): Eastern boundary circulation and hydrography off Angola - building Angolan oceanographic capacities. Bulletin of the American Meteorological Society, https://doi.org/10.1175/BAMS-D-17-0197.1

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Abstract:
The eastern boundary region off Angola encompasses a highly productive ecosystem important for the food security of the coastal population. The fish-stock distribution, however, undergoes large variability on intraseasonal, interannual, and longer time scales. These fluctuations are partly associated with large-scale warm anomalies that are often forced remotely from the equatorial Atlantic and propagate southward, reaching the Benguela upwelling off Namibia. Such warm events, named Benguela Niños, occurred in 1995 and in 2011. Here we present results from an underexplored extensive in situ dataset that was analyzed in the framework of a capacity-strengthening effort. The dataset was acquired within the Nansen Programme executed by the Food and Agriculture Organization of the United Nations and funded by the Norwegian government. It consists of hydrographic and velocity data from the Angolan continental margin acquired biannually during the main downwelling and upwelling seasons over more than 20 years. The mean seasonal changes of the Angola Current from 6° to 17°S are presented. During austral summer the southward Angola Current is concentrated in the upper 150 m. It strengthens from north to south, reaching a velocity maximum just north of the Angola Benguela Front. During austral winter the Angola Current is weaker, but deeper reaching. While the southward strengthening of the Angola Current can be related to the wind forcing, its seasonal variability is most likely explained by coastally trapped waves. On interannual time scales, the hydrographic data reveal remarkable variability in subsurface upper-ocean heat content. In particular, the 2011 Benguela Niño was preceded by a strong subsurface warming of about 2 years' duration.
Coverage:
Median Latitude: -11.327966 * Median Longitude: 12.125271 * South-bound Latitude: -17.316000 * West-bound Longitude: 8.001500 * North-bound Latitude: -5.000330 * East-bound Longitude: 13.844100
Date/Time Start: 1995-02-27T07:46:00 * Date/Time End: 2016-03-24T16:00:00
Size:
80 datasets

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Datasets listed in this publication series

  1. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2005404. https://doi.org/10.1594/PANGAEA.887467
  2. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2005408. https://doi.org/10.1594/PANGAEA.887588
  3. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2006403. https://doi.org/10.1594/PANGAEA.887589
  4. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2006408. https://doi.org/10.1594/PANGAEA.887590
  5. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2007403. https://doi.org/10.1594/PANGAEA.887591
  6. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2007406. https://doi.org/10.1594/PANGAEA.887592
  7. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2008402. https://doi.org/10.1594/PANGAEA.887603
  8. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2008404. https://doi.org/10.1594/PANGAEA.887604
  9. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2009403. https://doi.org/10.1594/PANGAEA.887605
  10. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2009406. https://doi.org/10.1594/PANGAEA.887606
  11. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2010402. https://doi.org/10.1594/PANGAEA.887607
  12. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2010406. https://doi.org/10.1594/PANGAEA.887608
  13. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2011402. https://doi.org/10.1594/PANGAEA.887609
  14. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2011403. https://doi.org/10.1594/PANGAEA.887610
  15. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2011408. https://doi.org/10.1594/PANGAEA.887611
  16. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2014401. https://doi.org/10.1594/PANGAEA.887612
  17. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2014405. https://doi.org/10.1594/PANGAEA.887613
  18. Tchipalanga, PCM; Ostrowski, M; Dengler, M et al. (2018): ADCP current measurements (150 kHz) during Fridtjof Nansen cruise FN2016404. https://doi.org/10.1594/PANGAEA.887614
  19. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1995402. https://doi.org/10.1594/PANGAEA.886488
  20. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1995405. https://doi.org/10.1594/PANGAEA.887139
  21. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1995407. https://doi.org/10.1594/PANGAEA.887141
  22. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1996402. https://doi.org/10.1594/PANGAEA.887142
  23. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1996406. https://doi.org/10.1594/PANGAEA.887143
  24. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1996407. https://doi.org/10.1594/PANGAEA.887144
  25. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1996409. https://doi.org/10.1594/PANGAEA.887145
  26. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1997402. https://doi.org/10.1594/PANGAEA.887146
  27. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1997403. https://doi.org/10.1594/PANGAEA.887147
  28. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1997404. https://doi.org/10.1594/PANGAEA.887148
  29. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1997405. https://doi.org/10.1594/PANGAEA.887149
  30. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1997407. https://doi.org/10.1594/PANGAEA.887150
  31. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1998402. https://doi.org/10.1594/PANGAEA.887151
  32. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1998404. https://doi.org/10.1594/PANGAEA.887161
  33. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1998405. https://doi.org/10.1594/PANGAEA.887162
  34. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1998409. https://doi.org/10.1594/PANGAEA.887163
  35. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1999403. https://doi.org/10.1594/PANGAEA.887164
  36. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN1999409. https://doi.org/10.1594/PANGAEA.887165
  37. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2000402. https://doi.org/10.1594/PANGAEA.887166
  38. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2000403. https://doi.org/10.1594/PANGAEA.887167
  39. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2000408. https://doi.org/10.1594/PANGAEA.887168
  40. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2001402. https://doi.org/10.1594/PANGAEA.887190
  41. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2001403. https://doi.org/10.1594/PANGAEA.887191
  42. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2001404. https://doi.org/10.1594/PANGAEA.887192
  43. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2001406. https://doi.org/10.1594/PANGAEA.887193
  44. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2002403. https://doi.org/10.1594/PANGAEA.887194
  45. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2002404. https://doi.org/10.1594/PANGAEA.887195
  46. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2002408. https://doi.org/10.1594/PANGAEA.887196
  47. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2002409. https://doi.org/10.1594/PANGAEA.887197
  48. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2003404. https://doi.org/10.1594/PANGAEA.887198
  49. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2003408. https://doi.org/10.1594/PANGAEA.887199
  50. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2004402. https://doi.org/10.1594/PANGAEA.887210
  51. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2004404. https://doi.org/10.1594/PANGAEA.887211
  52. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2004409. https://doi.org/10.1594/PANGAEA.887212
  53. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2005404. https://doi.org/10.1594/PANGAEA.887214
  54. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2005408. https://doi.org/10.1594/PANGAEA.887215
  55. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2006403. https://doi.org/10.1594/PANGAEA.887216
  56. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2006404. https://doi.org/10.1594/PANGAEA.887217
  57. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2006408. https://doi.org/10.1594/PANGAEA.887218
  58. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2006410. https://doi.org/10.1594/PANGAEA.887227
  59. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2007402. https://doi.org/10.1594/PANGAEA.887228
  60. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2007403. https://doi.org/10.1594/PANGAEA.887231
  61. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2007406. https://doi.org/10.1594/PANGAEA.887233
  62. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2008402. https://doi.org/10.1594/PANGAEA.887234
  63. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2008403. https://doi.org/10.1594/PANGAEA.887235
  64. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2008404. https://doi.org/10.1594/PANGAEA.887236
  65. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2009403. https://doi.org/10.1594/PANGAEA.887238
  66. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2009404. https://doi.org/10.1594/PANGAEA.887239
  67. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2009406. https://doi.org/10.1594/PANGAEA.887240
  68. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2010402. https://doi.org/10.1594/PANGAEA.887247
  69. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2010406. https://doi.org/10.1594/PANGAEA.887248
  70. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2011402. https://doi.org/10.1594/PANGAEA.887249
  71. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2011403. https://doi.org/10.1594/PANGAEA.887250
  72. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2011408. https://doi.org/10.1594/PANGAEA.887251
  73. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2012402. https://doi.org/10.1594/PANGAEA.887273
  74. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2012403. https://doi.org/10.1594/PANGAEA.887274
  75. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2012405. https://doi.org/10.1594/PANGAEA.887277
  76. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2013402. https://doi.org/10.1594/PANGAEA.887278
  77. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2013403. https://doi.org/10.1594/PANGAEA.887279
  78. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2013405. https://doi.org/10.1594/PANGAEA.887280
  79. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2013406. https://doi.org/10.1594/PANGAEA.887281
  80. Tchipalanga, PCM; Ostrowski, M; Dengler, M (2018): Physical oceanography (CTD) during Fridtjof Nansen cruise FN2014401. https://doi.org/10.1594/PANGAEA.887282