These images were taken by Chris Sherwood with a Pixel smartphone. Images were mostly taken around the areas pressure sensors were deployed (Field Activity 2023-023-FA) before, during, and after the storm. A CSV was created to provide captions, locations, and dates for each photo.
The images were geotagged and processed to add additional information required by the USGS to the EXIF headers using ExifTools (
https://exiftool.org/, version: 12.06), and the files were renamed to additional information. These steps are described here. For more information on the EXIF tags here and automatically populated by the camera see
https://exiftool.org/TagNames/EXIF.html
1. ExifTools was used to tag each photo with the following tags: Credit, Copyright, UsageTerms, ImageDescription, Artist, XMP:UsageTerms, XMP:AttributionURL, GPSLatitudeRef, GPSLongitudeRef, GPSAreaInfo, GPSMapDatum, GPSLatitude, GPSLongitude, and GPSAltitude stored in a CSV file with the command:' exiftool -csv="C:\directory\name\Geotags_EXIF.csv" C:\directory\name\of\photos *.jpg
The first row of the CSV are the tag names; the first column is SourceName (image names).
To read out the photo information to a CSV when in the directory with the photos the command is: exiftool -csv *.jpg > allheaders_out.csv
2. Image names follow the format '2023022FA_PXL_20230914T134646Z.jpg', where 2023022FA is the field activity ID, PXL is for Pixel smartphone, and 20230914 is the UTC date in the format YYYYMMDD. A 'T' is used to separate UTC date from UTC time in format HHMMSS followed by a Z. The original raw photo name is not appended to the end of the new filename because it was a repeat of PXL and the date and time.