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Legend for the Deepwater Horizon Trajectory Maps

The following legend explains the different types of trajectory maps produced by NOAA OR&R during the response to the Deepwater Horizon oil spill in 2010.

LEGEND

Cumulative:  Maps showing the surface location of spilled oil for several consecutive days, as well as a forecast for the following day.

Nearshore Surface Oil Forecasts:  Forecast estimates for the nearshore location of oil for the next 24, 48, or 72 hours, often produced twice a day. Time of day is shown using the 24-hour time system*.

N-Sh 24-hr [time]: 24-hour nearshore estimate

N-Sh 48-hr [time]: 48-hour nearshore estimate

N-Sh 72-hr [time]: 72-hour nearshore estimate

Offshore Surface Oil Forecasts:  Forecast estimates for the offshore location of oil for the next 24, 48, or 72 hours. Time of day is shown using the 24-hour time system*.

O-Sh 24-hr [time]: 24-hour offshore estimate

O-Sh 48-hr [time]: 48-hour offshore estimate

O-Sh 72-hr [time]: 72-hour offshore estimate

Loop Current:  Maps showing the oil slick's proximity to the Loop Current. * In the 24-hour time system, time of day is indicated by four digits, the first two indicating the hour (00 to 23) and the last two indicating the number of minutes past that hour (00 to 59). For example, the nearshore forecast maps for the next 24 hours produced on May 3 at 11:30 am and 11:00 pm are shown on the calendar date, May 3, as "N-Sh 24-hr 1130" and "N-Sh 24-hr 2300," respectively.

Return to the page, Deepwater Horizon Trajectory Maps: By Date.

Last updated Monday, April 29, 2019 7:08pm PDT