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Data Series 953

Navigation Data


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Navigation files were extracted as a comma-delimited American Standard Code for Information Interchange (ASCII) text file from a Garmin GPSMAP 696. For each trackpoint, the Garmin GPSMAP 696 recorded the following: date, time, latitude, longitude, altitude, color (for aviation graphics).

The photographs were acquired using a Nikon D7100. The camera was synchronized to Coordinated Universal Time (UTC) and the time of capture was recorded in the Exchangeable Image File (EXIF) header of each image. Image files are named according to the time they were captured. The image filename has the format yyyy_mmdd_hhmmssd.jpg. (For example, image 2014_0905_133636d.jpg was taken September 5, 2014, at 13:36:36 UTC, and "d" designates that a digital camera was used.) Images are associated with GPS positions according to the time of capture. Google Earth is used to view selected images taken during the flight based on their time of capture compared to the recorded position of the aircraft at that time in the GPS record.

Processed Navigation

The processed navigation file can be accessed from within the nav folder or by clicking the following link: ds953_2014-327-FA.csv (CSV file). The file contains 12 fields that are defined as follows:

Field 1: LONGITUDE - estimated longitude (decimal degree) position of aircraft
Field 2: LATITUDE - estimated latitude (decimal degree) position of aircraft
Field 3: HR_MIN_SEC - hour_minute_second (UTC)
Field 4: IMAGE - image filename (year_monthday_hhmmssd.jpg)
Field 5: IMAGE_URL - internal to data series location of the image
Field 6: CONTACT_SHEET_URL - internal to data series location of the contact sheet
Field 7: YEAR - year the photo was taken
Field 8: MONTH - month the photo was taken
Field 9: DAY - day the photo was taken
Field 10: PRE_POST - type of survey conducted (pre- or post-storm)
Field 11: STORM - (baseline or name of the storm)
Field 12: GEO_AREA - locations surveyed

Raw Navigation

The raw navigation files can be accessed from within the nav folder or by clicking the following link: ds953_2014-327-FA_0905_gpsmap696.txt (text file). The file contains six fields (separated by a comma) that are defined as follows:

Field 1: HEADER: "T"
Field 2: DATE - (month/day/year)
Field 3: TIME - time (hh:mm:ss)
Field 4: LATITUDE - decimal degrees
Field 5: LONGITUDE - decimal degrees
Field 6: ALTITUDE (feet)


Home | Abbreviations | Contents | Photos and Maps | Navigation Data | Logs | Metadata | Citation Page

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Page Last Modified: Monday, November 28, 2016, 08:42:42 PM