ECOHAB PNW Drifter Data Processing:
Raw drifter data has been edited to remove duplicate transmissions and occasiaonal unrealistic
positions. Final data for each drifter is in individual files with the suffix ".edt". If a
drifter was deployed more than once during a cruise, the drifter id will be followed by a
letter (a/b/c) indicating sequential deployments. Each file has four columns which are date,
time, GPS longitude, and GPS latitude. Temperature and conductivity data are available for
some drifters, but this data has not been calibrated so users should contact Barbara Hickey
hickey@u.washington.edu) if they wish to obtain this data.
BCO-DMO Processing Notes
Generated from original file ECOdrifters.zip
contributed to BCO-DMO as a zipped data/docs file by Any MacFadyen
BCO-DMO Edits
- generated a file of all ECOHAB drifter "metadata" from individual .html yearly files
- file includes drifterids, models, deployment/recovery dates/times, deployment lats/lons and comments
- file was generated manually from data contained in the .html files
- empty cells filled with "nd" (no data)
- Cruise changed from "Cruise_1,2,3,4" to ECOHAB_1, etc for consistency with other data sets
Drifter data files
- simple awk script generated to reformat ECOHAB/PNW drifter data fmt to BCO-DMO
- date reformatted to YYYYMMDD
- time reformatted to HHMMSS
- lat/lon positions output unchanged
- Sample I/P Record: 25-Sep-2006 05:00:00 -125.496333 48.247833
- Sample O/P Record: 20060925,050000,-125.496333,48.247833
- Simple plot generated of individual drifter track with coastline to provide preview capability