File(s) | Type | Description | Action |
---|---|---|---|
ftle.nc (85.50 MB) | NetCDF | Finite Time Lyapunov Exponent Results (FTLE) results in netCDF format. Netcdf header: ncdump -h ftle.nc netcdf ftle\ \(1\) { dimensions: Time = 1273 ; Lat = 44 ; Lon = 100 ; Char = 20 ; variables: double FTLE_values(Time, Lon, Lat) ; FTLE_values:long_name = "Finite Time Lyapunov Exponent" ; FTLE_values:standard_name = "finite_time_lyapunov_exponent" ; FTLE_values:units = "1/hr" ; FTLE_values:FillValue = "0" ; FTLE_values:resolution = 100., 44. ; FTLE_values:domain = -65.5019, -65.4322, -63.4104, -64.5329 ; double time(Time) ; time:long_name = "Time" ; time:standard_name = "time" ; time:units = "days since 0000 01-01-T00:00:00; datenum serial date number" ; time:FillValue = "NaN" ; time:calendar = "georgian" ; time:TimeZone = "GMT" ; char time_readable(Char, Time) ; time_readable:long_name = "Time" ; time_readable:standard_name = "time" ; time_readable:units = "date_string" ; time_readable:FillValue = "NaN" ; time_readable:calendar = "georgian" ; time_readable:TimeZone = "GMT" ; double FTLE_binary(Time, Lon, Lat) ; FTLE_binary:long_name = "Finite Time Lyapunov Exponent Binary (greater than 0.2)" ; FTLE_binary:standard_name = "finite_time_lyapunov_exponent" ; FTLE_binary:units = "none" ; FTLE_binary:FillValue = "0" ; double lat(Lat) ; lat:long_name = "Latitude" ; lat:standard_name = "latitude" ; lat:units = "degrees_north" ; lat:FillValue = "NaN" ; double lon(Lon) ; lon:long_name = "Longitude" ; lon:standard_name = "longitude" ; lon:units = "degrees_east" ; lon:FillValue = "NaN" ; } | |
Supplemental File(s) | Type | Description | Action |
SWARM_LCS-related_to_bcodmo_917926_917914_v1.zip (33.15 KB) | ZIP Archive (ZIP) | Code release made from https://github.com/JackieVeatch/SWARM_LCS forked to BCO-DMO https://github.com/BCODMO/SWARM_LCS/releases/tag/related_to_bcodmo_917926_917914_v1 for curatorial purposes. The repository was forked from https://github.com/JackieVeatch/SWARM_LCS on 2024-01-08. No changes to the code were made. Release corresponds to commit https://github.com/JackieVeatch/SWARM_LCS/commit/10931d9a1508316fa65e2f82fd6052882d4e0aea Repository README: code for the calculation of Lagrangian coherent structures from HFR observed surface currents in Palmer Deep Canyon RPD calculations can be computed following instructions in "READ_ME.docx" in this repo. FTLE calculations can be computed using "backward_ftle_loop_short.m" within George Haller's LCS toolbox. Place "backward_ftle_loop_short.m" in the LCS-Tool-master/demo/ocean_dataset directory within toolbox. Access toolbox here: Haller, K. O. F. H. G. LCS Tool: A Computational Platform for Lagrangian Coherent Structures. https://github.com/jeixav/LCS-Tool-Article/. Haller, K. O. F. H. G. LCS Tool: A Computational Platform for Lagrangian Coherent Structures (https://doi.org/10.48550/arXiv.1406.3527) | |
ftle_LR_binary.mat (38.94 MB) | MATLAB Data (.mat) | Data in alternate format (matlab .mat). These files contain the same dataset as the primary file for this dataset ftle.nc (netCDF). Note that the .nc file contains datetime in string format while the .mat files contain only matlab datenum type. Finite Time Lyapunov Exponents (ftle_LR.mat) matlab file contains FTLE results gridded by longitude and latitude hourly. ftle_LR = struct with fields: ftle: [44x100x1273 double] time: [737804 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 ... ] (1x1273 double) resolution: [100 44] domain: [2x2 double] dnum: [737804 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 ... ] (1x1273 double) binary: [44x100x1273 double] x: [-65.5019 -65.4808 -65.4597 -65.4385 -65.4174 -65.3963 -65.3752 -65.3540 -65.3329 -65.3118 -65.2906 -65.2695 -65.2484 -65.2273 -65.2061 -65.1850 ... ] (1x100 double) y: [-65.4322 -65.4113 -65.3904 -65.3695 -65.3486 -65.3276 -65.3067 -65.2858 -65.2649 -65.2440 -65.2231 -65.2022 -65.1812 -65.1603 -65.1394 -65.1185 ... ] (1x44 double) VariableName Description Units Missing data identifier ftle gridded FTLE results 1/hour lon x lat x time time timestamp of FTLE results serial date number. a serial date number representsthe whole and fractional number of days from January 0,0000 in the proleptic ISO calendar resolution dimensions of grid n/a used in FTLE projection domain extent of results decimal degree used in FTLE calculation binary gridded FTLE results with n/a 1 indicating strong FTLE and 0 indicating no or weak FTLE x coordinates of result longitude (decimal degree) y coordinates of result latitude (decimal degree) |
Files
Type: NetCDF
Description: Finite Time Lyapunov Exponent Results (FTLE) results in netCDF format. Netcdf header: ncdump -h ftle.nc netcdf ftle\ \(1\) { dimensions: Time = 1273 ; Lat = 44 ; Lon = 100 ; Char = 20 ; variables: double FTLE_values(Time, Lon, Lat) ; FTLE_values:long_name = "Finite Time Lyapunov Exponent" ; FTLE_values:standard_name = "finite_time_lyapunov_exponent" ; FTLE_values:units = "1/hr" ; FTLE_values:FillValue = "0" ; FTLE_values:resolution = 100., 44. ; FTLE_values:domain = -65.5019, -65.4322, -63.4104, -64.5329 ; double time(Time) ; time:long_name = "Time" ; time:standard_name = "time" ; time:units = "days since 0000 01-01-T00:00:00; datenum serial date number" ; time:FillValue = "NaN" ; time:calendar = "georgian" ; time:TimeZone = "GMT" ; char time_readable(Char, Time) ; time_readable:long_name = "Time" ; time_readable:standard_name = "time" ; time_readable:units = "date_string" ; time_readable:FillValue = "NaN" ; time_readable:calendar = "georgian" ; time_readable:TimeZone = "GMT" ; double FTLE_binary(Time, Lon, Lat) ; FTLE_binary:long_name = "Finite Time Lyapunov Exponent Binary (greater than 0.2)" ; FTLE_binary:standard_name = "finite_time_lyapunov_exponent" ; FTLE_binary:units = "none" ; FTLE_binary:FillValue = "0" ; double lat(Lat) ; lat:long_name = "Latitude" ; lat:standard_name = "latitude" ; lat:units = "degrees_north" ; lat:FillValue = "NaN" ; double lon(Lon) ; lon:long_name = "Longitude" ; lon:standard_name = "longitude" ; lon:units = "degrees_east" ; lon:FillValue = "NaN" ; }
Supplemental Files
Type: ZIP Archive (ZIP)
Description: Code release made from https://github.com/JackieVeatch/SWARM_LCS forked to BCO-DMO https://github.com/BCODMO/SWARM_LCS/releases/tag/related_to_bcodmo_917926_917914_v1 for curatorial purposes. The repository was forked from https://github.com/JackieVeatch/SWARM_LCS on 2024-01-08. No changes to the code were made. Release corresponds to commit https://github.com/JackieVeatch/SWARM_LCS/commit/10931d9a1508316fa65e2f82fd6052882d4e0aea Repository README: code for the calculation of Lagrangian coherent structures from HFR observed surface currents in Palmer Deep Canyon RPD calculations can be computed following instructions in "READ_ME.docx" in this repo. FTLE calculations can be computed using "backward_ftle_loop_short.m" within George Haller's LCS toolbox. Place "backward_ftle_loop_short.m" in the LCS-Tool-master/demo/ocean_dataset directory within toolbox. Access toolbox here: Haller, K. O. F. H. G. LCS Tool: A Computational Platform for Lagrangian Coherent Structures. https://github.com/jeixav/LCS-Tool-Article/. Haller, K. O. F. H. G. LCS Tool: A Computational Platform for Lagrangian Coherent Structures (https://doi.org/10.48550/arXiv.1406.3527)
Type: MATLAB Data (.mat)
Description: Data in alternate format (matlab .mat). These files contain the same dataset as the primary file for this dataset ftle.nc (netCDF). Note that the .nc file contains datetime in string format while the .mat files contain only matlab datenum type. Finite Time Lyapunov Exponents (ftle_LR.mat) matlab file contains FTLE results gridded by longitude and latitude hourly. ftle_LR = struct with fields: ftle: [44x100x1273 double] time: [737804 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 ... ] (1x1273 double) resolution: [100 44] domain: [2x2 double] dnum: [737804 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 7.3780e+05 ... ] (1x1273 double) binary: [44x100x1273 double] x: [-65.5019 -65.4808 -65.4597 -65.4385 -65.4174 -65.3963 -65.3752 -65.3540 -65.3329 -65.3118 -65.2906 -65.2695 -65.2484 -65.2273 -65.2061 -65.1850 ... ] (1x100 double) y: [-65.4322 -65.4113 -65.3904 -65.3695 -65.3486 -65.3276 -65.3067 -65.2858 -65.2649 -65.2440 -65.2231 -65.2022 -65.1812 -65.1603 -65.1394 -65.1185 ... ] (1x44 double) VariableName Description Units Missing data identifier ftle gridded FTLE results 1/hour lon x lat x time time timestamp of FTLE results serial date number. a serial date number representsthe whole and fractional number of days from January 0,0000 in the proleptic ISO calendar resolution dimensions of grid n/a used in FTLE projection domain extent of results decimal degree used in FTLE calculation binary gridded FTLE results with n/a 1 indicating strong FTLE and 0 indicating no or weak FTLE x coordinates of result longitude (decimal degree) y coordinates of result latitude (decimal degree)