Abstract:

85 near-surface CODE-type ocean drifters (drogued at a depth of one meter) tracked in real-time at 1-second intervals using GT-31 GPS units, were launched in the northern Gulf of Mexico near DeSoto Canyon on 22 July 2012 as part of the CARTHE Grand Lagrangian Deployment (GLAD) experiment. These drifters constitute a subset of the SPOT-tracked GLAD drifters and were launched in nested triplets (separated by roughly 100 m, resp. 500 m, at launch) in an attempt to measure multi-scale near surface dispersion. No temperature or salinity sensors were attached to these drifters. After two days, the drifters were tracked down and the GT-31 units retrieved, while the SPOT units continued collecting trajectory data. (See GRIIDC dataset R1.x134.073:0033 for the corresponding SPOT data.) This dataset contains raw data. This dataset was created by the Consortium for Advanced Research on Transport of Hydrocarbon in the Environment (CARTHE). This research was made possible by a grant from BP/The Gulf of Mexico Research Initiative.

Suggested Citation:

Olascoaga, M. Josefina. 2016. Grand Lagrangian Deployment (GLAD) high-resolution CODE-style drifter trajectories (1-sec sampling), northern Gulf of Mexico near DeSoto Canyon, 22-24 July 2012. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7WM1BDK

Purpose:

The high-resolution GPS data was collected for a detailed view of the drifter drift.

Data Parameters and Units:

longitude (decimal degrees), latitude (decimal degrees), sea surface height (cm), time stamp (YYYY-MM-DD HH:MM)

Methods:

Latitude, Longitude, and sea surface height were measured by GPS

Individual Files: