Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters

Arthur J Mariano, E. H. Ryan, H. S. Huntley, L. C. Laurindo, E. Coelho, A. Griffa, Tamay M Ozgokmen, M. Berta, D. Bogucki, Shuyi S Chen, M. Curcic, K. L. Drouin, M. Gough, Brian K Haus, A. C. Haza, P. Hogan, Mohamed Iskandarani, G. Jacobs, A. D. Kirwan, N. Laxague & 8 others B. Lipphardt, M. G. Magaldi, G. Novelli, A. Reniers, J. M. Restrepo, C. Smith, A. Valle-Levinson, M. Wei

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Grand LAgrangian Deployment (GLAD) used multiscale sampling and GPS technology to observe time series of drifter positions with initial drifter separation of O(100 m) to O(10 km), and nominal 5 min sampling, during the summer and fall of 2012 in the northern Gulf of Mexico. Histograms of the velocity field and its statistical parameters are non-Gaussian; most are multimodal. The dominant periods for the surface velocity field are 1–2 days due to inertial oscillations, tides, and the sea breeze; 5–6 days due to wind forcing and submesoscale eddies; 9–10 days and two weeks or longer periods due to wind forcing and mesoscale variability, including the period of eddy rotation. The temporal e-folding scales of a fitted drifter velocity autocorrelation function are bimodal with time scales, 0.25–0.50 days and 0.9–1.4 days, and are the same order as the temporal e-folding scales of observed winds from nearby moored National Data Buoy Center stations. The Lagrangian integral time scales increase from coastal values of 8 h to offshore values of approximately 2 days with peak values of 3–4 days. The velocity variance is large, O(1)m2/s2, the surface velocity statistics are more anisotropic, and increased dispersion is observed at flow bifurcations. Horizontal diffusivity estimates are O(103)m2/s in coastal regions with weaker flow to O(105)m2/s in flow bifurcations, a strong jet, and during the passage of Hurricane Isaac. The Gulf of Mexico surface velocity statistics sampled by the GLAD drifters are a strong function of the feature sampled, topography, and wind forcing.

Original languageEnglish (US)
Pages (from-to)5193-5216
Number of pages24
JournalJournal of Geophysical Research C: Oceans
Volume121
Issue number7
DOIs
StatePublished - Jul 1 2016

Fingerprint

Gulf of Mexico
drifter
velocity distribution
wind forcing
folding
sea breeze
sampling
statistics
vortices
bifurcation
hurricanes
eddy
tides
histograms
Statistics
Sampling
autocorrelation
diffusivity
summer
timescale

Keywords

  • GLAD drifters
  • Gulf of Mexico
  • surface velocity statistics

ASJC Scopus subject areas

  • Geophysics
  • Oceanography
  • Forestry
  • Ecology
  • Aquatic Science
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters. / Mariano, Arthur J; Ryan, E. H.; Huntley, H. S.; Laurindo, L. C.; Coelho, E.; Griffa, A.; Ozgokmen, Tamay M; Berta, M.; Bogucki, D.; Chen, Shuyi S; Curcic, M.; Drouin, K. L.; Gough, M.; Haus, Brian K; Haza, A. C.; Hogan, P.; Iskandarani, Mohamed; Jacobs, G.; Kirwan, A. D.; Laxague, N.; Lipphardt, B.; Magaldi, M. G.; Novelli, G.; Reniers, A.; Restrepo, J. M.; Smith, C.; Valle-Levinson, A.; Wei, M.

In: Journal of Geophysical Research C: Oceans, Vol. 121, No. 7, 01.07.2016, p. 5193-5216.

Research output: Contribution to journalArticle

Mariano, AJ, Ryan, EH, Huntley, HS, Laurindo, LC, Coelho, E, Griffa, A, Ozgokmen, TM, Berta, M, Bogucki, D, Chen, SS, Curcic, M, Drouin, KL, Gough, M, Haus, BK, Haza, AC, Hogan, P, Iskandarani, M, Jacobs, G, Kirwan, AD, Laxague, N, Lipphardt, B, Magaldi, MG, Novelli, G, Reniers, A, Restrepo, JM, Smith, C, Valle-Levinson, A & Wei, M 2016, 'Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters', Journal of Geophysical Research C: Oceans, vol. 121, no. 7, pp. 5193-5216. https://doi.org/10.1002/2015JC011569
Mariano, Arthur J ; Ryan, E. H. ; Huntley, H. S. ; Laurindo, L. C. ; Coelho, E. ; Griffa, A. ; Ozgokmen, Tamay M ; Berta, M. ; Bogucki, D. ; Chen, Shuyi S ; Curcic, M. ; Drouin, K. L. ; Gough, M. ; Haus, Brian K ; Haza, A. C. ; Hogan, P. ; Iskandarani, Mohamed ; Jacobs, G. ; Kirwan, A. D. ; Laxague, N. ; Lipphardt, B. ; Magaldi, M. G. ; Novelli, G. ; Reniers, A. ; Restrepo, J. M. ; Smith, C. ; Valle-Levinson, A. ; Wei, M. / Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters. In: Journal of Geophysical Research C: Oceans. 2016 ; Vol. 121, No. 7. pp. 5193-5216.
@article{1c5a4b4010944f4fb0442ded475fdd9f,
title = "Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters",
abstract = "The Grand LAgrangian Deployment (GLAD) used multiscale sampling and GPS technology to observe time series of drifter positions with initial drifter separation of O(100 m) to O(10 km), and nominal 5 min sampling, during the summer and fall of 2012 in the northern Gulf of Mexico. Histograms of the velocity field and its statistical parameters are non-Gaussian; most are multimodal. The dominant periods for the surface velocity field are 1–2 days due to inertial oscillations, tides, and the sea breeze; 5–6 days due to wind forcing and submesoscale eddies; 9–10 days and two weeks or longer periods due to wind forcing and mesoscale variability, including the period of eddy rotation. The temporal e-folding scales of a fitted drifter velocity autocorrelation function are bimodal with time scales, 0.25–0.50 days and 0.9–1.4 days, and are the same order as the temporal e-folding scales of observed winds from nearby moored National Data Buoy Center stations. The Lagrangian integral time scales increase from coastal values of 8 h to offshore values of approximately 2 days with peak values of 3–4 days. The velocity variance is large, O(1)m2/s2, the surface velocity statistics are more anisotropic, and increased dispersion is observed at flow bifurcations. Horizontal diffusivity estimates are O(103)m2/s in coastal regions with weaker flow to O(105)m2/s in flow bifurcations, a strong jet, and during the passage of Hurricane Isaac. The Gulf of Mexico surface velocity statistics sampled by the GLAD drifters are a strong function of the feature sampled, topography, and wind forcing.",
keywords = "GLAD drifters, Gulf of Mexico, surface velocity statistics",
author = "Mariano, {Arthur J} and Ryan, {E. H.} and Huntley, {H. S.} and Laurindo, {L. C.} and E. Coelho and A. Griffa and Ozgokmen, {Tamay M} and M. Berta and D. Bogucki and Chen, {Shuyi S} and M. Curcic and Drouin, {K. L.} and M. Gough and Haus, {Brian K} and Haza, {A. C.} and P. Hogan and Mohamed Iskandarani and G. Jacobs and Kirwan, {A. D.} and N. Laxague and B. Lipphardt and Magaldi, {M. G.} and G. Novelli and A. Reniers and Restrepo, {J. M.} and C. Smith and A. Valle-Levinson and M. Wei",
year = "2016",
month = "7",
day = "1",
doi = "10.1002/2015JC011569",
language = "English (US)",
volume = "121",
pages = "5193--5216",
journal = "Journal of Geophysical Research: Oceans",
issn = "2169-9275",
publisher = "Wiley-Blackwell",
number = "7",

}

TY - JOUR

T1 - Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters

AU - Mariano, Arthur J

AU - Ryan, E. H.

AU - Huntley, H. S.

AU - Laurindo, L. C.

AU - Coelho, E.

AU - Griffa, A.

AU - Ozgokmen, Tamay M

AU - Berta, M.

AU - Bogucki, D.

AU - Chen, Shuyi S

AU - Curcic, M.

AU - Drouin, K. L.

AU - Gough, M.

AU - Haus, Brian K

AU - Haza, A. C.

AU - Hogan, P.

AU - Iskandarani, Mohamed

AU - Jacobs, G.

AU - Kirwan, A. D.

AU - Laxague, N.

AU - Lipphardt, B.

AU - Magaldi, M. G.

AU - Novelli, G.

AU - Reniers, A.

AU - Restrepo, J. M.

AU - Smith, C.

AU - Valle-Levinson, A.

AU - Wei, M.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The Grand LAgrangian Deployment (GLAD) used multiscale sampling and GPS technology to observe time series of drifter positions with initial drifter separation of O(100 m) to O(10 km), and nominal 5 min sampling, during the summer and fall of 2012 in the northern Gulf of Mexico. Histograms of the velocity field and its statistical parameters are non-Gaussian; most are multimodal. The dominant periods for the surface velocity field are 1–2 days due to inertial oscillations, tides, and the sea breeze; 5–6 days due to wind forcing and submesoscale eddies; 9–10 days and two weeks or longer periods due to wind forcing and mesoscale variability, including the period of eddy rotation. The temporal e-folding scales of a fitted drifter velocity autocorrelation function are bimodal with time scales, 0.25–0.50 days and 0.9–1.4 days, and are the same order as the temporal e-folding scales of observed winds from nearby moored National Data Buoy Center stations. The Lagrangian integral time scales increase from coastal values of 8 h to offshore values of approximately 2 days with peak values of 3–4 days. The velocity variance is large, O(1)m2/s2, the surface velocity statistics are more anisotropic, and increased dispersion is observed at flow bifurcations. Horizontal diffusivity estimates are O(103)m2/s in coastal regions with weaker flow to O(105)m2/s in flow bifurcations, a strong jet, and during the passage of Hurricane Isaac. The Gulf of Mexico surface velocity statistics sampled by the GLAD drifters are a strong function of the feature sampled, topography, and wind forcing.

AB - The Grand LAgrangian Deployment (GLAD) used multiscale sampling and GPS technology to observe time series of drifter positions with initial drifter separation of O(100 m) to O(10 km), and nominal 5 min sampling, during the summer and fall of 2012 in the northern Gulf of Mexico. Histograms of the velocity field and its statistical parameters are non-Gaussian; most are multimodal. The dominant periods for the surface velocity field are 1–2 days due to inertial oscillations, tides, and the sea breeze; 5–6 days due to wind forcing and submesoscale eddies; 9–10 days and two weeks or longer periods due to wind forcing and mesoscale variability, including the period of eddy rotation. The temporal e-folding scales of a fitted drifter velocity autocorrelation function are bimodal with time scales, 0.25–0.50 days and 0.9–1.4 days, and are the same order as the temporal e-folding scales of observed winds from nearby moored National Data Buoy Center stations. The Lagrangian integral time scales increase from coastal values of 8 h to offshore values of approximately 2 days with peak values of 3–4 days. The velocity variance is large, O(1)m2/s2, the surface velocity statistics are more anisotropic, and increased dispersion is observed at flow bifurcations. Horizontal diffusivity estimates are O(103)m2/s in coastal regions with weaker flow to O(105)m2/s in flow bifurcations, a strong jet, and during the passage of Hurricane Isaac. The Gulf of Mexico surface velocity statistics sampled by the GLAD drifters are a strong function of the feature sampled, topography, and wind forcing.

KW - GLAD drifters

KW - Gulf of Mexico

KW - surface velocity statistics

UR - http://www.scopus.com/inward/record.url?scp=84983490942&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983490942&partnerID=8YFLogxK

U2 - 10.1002/2015JC011569

DO - 10.1002/2015JC011569

M3 - Article

VL - 121

SP - 5193

EP - 5216

JO - Journal of Geophysical Research: Oceans

JF - Journal of Geophysical Research: Oceans

SN - 2169-9275

IS - 7

ER -