@article{fdi:010081106,
  title = {{T}wenty-seven years of scatterometer surface wind analysis over eastern boundary upwelling systems},
  author = {{B}entamy, {A}. and {G}rodsky, {S}. {A}. and {C}ambon, {G}ildas and {T}andeo, {P}. and {C}apet, {X}. and {R}oy, {C}laude and {H}erbette, {S}. and {G}rouazel, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}ore than twelve satellite scatterometers have operated since 1992 through the present, providing the main source of surface wind vector observations over global oceans. {I}n this study, these scatterometer winds are used in combination with radiometers and synthetic aperture radars ({SAR}) for the better determination and characterization of high spatial and temporal resolution of regional surface wind parameters, including wind speed and direction, wind stress components, wind stress curl, and divergence. {I}n this paper, a 27-year-long (1992-2018) 6-h satellite wind analysis with a spatial resolution of 0.125 degrees in latitude and longitude is calculated using spatial structure functions derived from high-resolution {SAR} data. {T}he main objective is to improve regional winds over three major upwelling regions (the {C}anary, {B}enguela, and {C}alifornia regions) through the use of accurate and homogenized wind observations and region-specific spatial and temporal wind variation structure functions derived from buoy and {SAR} data. {T}he long time series of satellite wind analysis over the {C}alifornia upwelling, where a significant number of moorings is available, are used for assessing the accuracy of the analysis. {T}he latter is close to scatterometer wind retrieval accuracy. {T}his assessment shows that the root mean square difference between collocated 6-h satellite wind analysis and buoys is lower than 1.50 and 1.80 m s(-1) for offshore and nearshore locations, respectively. {T}he temporal correlation between buoy and satellite analysis winds exceeds 0.90. {T}he analysis accuracy is lower for 1992-1999 when satellite winds were mostly retrieved from {ERS}-1 and/or {ERS}-2 scatterometers. {T}o further assess the improvement brought by this new wind analysis, its data and data from three independent products ({ERA}5, {CMEMS}, and {CCMP}) are compared with purely scatterometer winds over the {C}anary and {B}enguela regions. {E}ven though the four products are generally similar, the new satellite analysis shows significant improvements, particularly in the upwelling areas.},
  keywords = {satellite scatterometer ; surface wind ; upwelling systems ; long time series ; {ATLANTIQUE} ; {PACIFIQUE} ; {CANARIES} {COURANT} ; {BENGUELA} {COURANT} ; {CALIFORNIE} {COURANT}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {13},
  numero = {5},
  pages = {940 [28 p.]},
  year = {2021},
  DOI = {10.3390/rs13050940},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081106},
}