Citation:

PANGAEA.897147

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Abstract:

In early 2000 and again in 2001, RAFOS floats were deployed in the western tropical Atlantic near latitude 16N. These floats drift at pre-determined depths for durations of typically one year or more, and they are geo-located by triangulation using sound signals from moored underwater sound sources. The float trajectories then show the currents of the water they drift in. The first batch of floats drifted in the layer of the Antarctic Intermediate Water near 800m depth, the second in the upper North Atlantic Deep Water near 1400m depth. Here, the trajectory data from the floats (position and lateral velocity) are presented, together with temperature and pressure records. Two versions of the data are included: one that leaves gaps in the trajectories untreated (see "Download data"), and another one that is smoothed with a low-pass filter and has gaps filled or removed (see "Other version"). The floats were part of the Meridional Overturning Variability Experiment (MOVE), a project to investigate the meridional overturning circulation of the Atlantic. MOVE was funded by the German agencies BMBF (awards 03F0246A and 03F0377B) as well as DFG (award SE815/21).

Related to:

Lankhorst, Matthias; Fratantoni, David; Ollitrault, Michel; Richardson, Philip L; Send, Uwe; Zenk, Walter (2009): The mid-depth circulation of the northwestern tropical Atlantic observed by floats. Deep Sea Research Part I: Oceanographic Research Papers, 56(10), 1615-1632, https://doi.org/10.1016/j.dsr.2009.06.002

Ollitrault, Michel; Lankhorst, Matthias; Fratantoni, David; Richardson, Philip L; Zenk, Walter (2006): Zonal intermediate currents in the equatorial Atlantic Ocean. Geophysical Research Letters, 33(5), https://doi.org/10.1029/2005GL025368

Other version:

RAFOS Float Data 2000-2001 with gaps removed/interpolated

Coverage:

Median Latitude: 15.802396 * Median Longitude: -56.178820 * South-bound Latitude: 7.338000 * West-bound Longitude: -64.862000 * North-bound Latitude: 22.269000 * East-bound Longitude: -47.105000

Date/Time Start: 2000-02-01T00:28:48 * Date/Time End: 2001-11-01T00:28:48

Minimum DEPTH, water: 668.83 m * Maximum DEPTH, water: 1974.71 m

Event(s):

KN161-02_RAFOS-80 (IfM_no_495) * Latitude: 16.007900 * Longitude: -57.617850 * Date/Time: 2000-02-02T15:21:00 * Campaign: * Basis: Knorr * Method/Device: RAFOS float (RAFOS) * Comment: ID ARGOS: 5493/55D61

KN161-02_RAFOS-81 (IfM_no_496) * Latitude: 16.337300 * Longitude: -60.581330 * Date/Time: 2000-02-04T08:42:00 * Campaign: * Basis: Knorr * Method/Device: RAFOS float (RAFOS) * Comment: ID ARGOS: 5494/55D94

KN161-02_RAFOS-82 (IfM_no_497) * Latitude: 16.346150 * Longitude: -60.715100 * Date/Time: 2000-02-04T13:12:00 * Campaign: * Basis: Knorr * Method/Device: RAFOS float (RAFOS) * Comment: ID ARGOS: 6835/6ACC3

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Lankhorst, Matthias
2	Sample code/label	Sample label		Lankhorst, Matthias	Float/Trajectory ID
3	DATE/TIME	Date/Time		Lankhorst, Matthias	Geocode
4	Time point, descriptive	Time point		Lankhorst, Matthias	days since 1968-05-23T00:00:00Z
5	LATITUDE	Latitude		Lankhorst, Matthias	Geocode
6	LONGITUDE	Longitude		Lankhorst, Matthias	Geocode
7	DEPTH, water	Depth water	m	Lankhorst, Matthias	Geocode – calculated
8	Pressure, water	Press	dbar	Lankhorst, Matthias
9	Temperature, water	Temp	°C	Lankhorst, Matthias
10	Current velocity, east-west	Cur vel U	cm/s	Lankhorst, Matthias
11	Current velocity, north-south	Cur vel V	cm/s	Lankhorst, Matthias

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

44900 data points

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