@article{fdi:010046064,
  title = {{O}n model validation for meso/submesoscale currents : metrics and application to {ROMS} off {C}entral {C}alifornia},
  author = {{I}vanov, {L}. {M}. and {C}ollins, {C}. {A}. and {M}archesiello, {P}atrick and {M}argolina, {T}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{ROMS} with horizontal grid spacing of 3.5 km for the region off {C}entral {C}alifornia was compared to {RAFOS} float observations and satellite altimetry on meso/submesoscales. {T}he approach introduced and used two new metrics for model-data comparison, as well as suggested how to calculate these metrics for different spatio-temporal scales. {T}he first metric consisted of the first two moments of exit time and was used to compare {ROMS} against {RAFOS} float observations at mid-depths (between 300 m and 350 m). {E}xit time is the time a float launched at a point takes to leave a domain for the first time. {T}he second metric was spectral entropy and was used to estimate how well {ROMS} reproduced variability of the sea surface height ({SSH}) anomaly field extracted from an {AVISO} data set (1992-2007) for specified temporal and spatial scales. {C}alculations showed that {ROMS} reproduced the mid-depth mesoscale/{S}ubmesoscale {C}urrents next to the coast in a very accurate manner (low-order exit time statistics of floats were reproduced by {ROMS} with an accuracy better than 95%); but {ROMS} overestimated the speed of westward drift of floats by as much as 20-30% at distances greater than 350 kin from the coastline. {ROMS} predicted the variability of the mesoscale (100-400 km) {SSH} anomaly field for temporal scales of 1-12 months with a reasonable accuracy. {A} wavelet transform modulus maxima technique applied to the spectral entropy of {SSH} anomaly also demonstrated good agreement between {ROMS} and satellite altimetry for mesoscales characterized by singular exponents and multi-fractal spectra for 1-12 month time scales.},
  keywords = {{M}odels ; {ROMS} ; {S}ubmesoscale features ; {M}esoscale features ; {S}ubsurface drifters ; {S}atellite altimetly},
  booktitle = {},
  journal = {{O}cean {M}odelling},
  volume = {28},
  numero = {4},
  pages = {209--225},
  ISSN = {1463-5003},
  year = {2009},
  DOI = {10.1016/j.ocemod.2009.02.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046064},
}