Project NTAS - Northwest Tropical Atlantic Station for air-sea flux measurement

Sponsors
to NOAA Web sitePrincipal funding is provided by (NOAA) Office of Climate Observation (OCO).
Data Links
See Data Archive page, above, for delayed-mode data.
NTAS-XIV
Deployed: December 13, 2014
Recovered: February 4, 2016
Argos
Text files:
Data listing: ASIMet1     ASIMet2
NetCDF files:
Data: Logger 3     Logger 5
Metadata: Logger 16     Logger 12
Plots: Plot 1     Plot 2


NTAS-XV
Deployed: February 2, 2016
Argos
Text files:
Daily transmission: Logger 5     Logger 6
Complete listing: ASIMet1     ASIMet2
NetCDF files:
Data: Logger 5     Logger 6
Metadata: Logger 5     Logger 6
Plots: Plot 1     Plot 2


Provisional Subsurface Data
Post-processed Iridium telemetry data (see href="#Iridium">note.
NTAS VII
MetaData (text)
NetCDF
ASCII
Contour plot
NTAS IX
MetaData (text)
NetCDF
ASCII
Contour plot
NTAS X
MetaData (text)
NetCDF
ASCII
Contour plot
NTAS XI
MetaData (text)
NetCDF
ASCII
Contour plot
NTAS XII
MetaData (text)
NetCDF
ASCII
Contour plot

Real Time Data

The NTAS site is WMO ID 48401 and NDBC Partner Platform 41NT0.
A note on resolution, and one on ASIMet data formats.

Real time data is sent back to shore by several subsystems on the buoy. Argos transmitters relay met data from the two ASIMet loggers on the buoy, and a subsurface telemetry system, consisting of an inductive modem transmitting via Iridium, sends back data from several instruments on the mooring line. Links to near-real-time data are on the right-hand column of this page.
NTAS data is also available from the OceanSITES THREDDS server at NDBC.

NTAS-XV

The fifteenth NTAS buoy was deployed from the R/V Endeavor on February 2, 2016.



Meteorology

Hourly meteorological data for the current deployment of the NTAS buoy are recieved via Service Argos four times daily. Data is displayed as time series and available for download as ASCII files a well as OceanSITES NetCDF files.


NTAS imet fig 1 NTAS  imet fig 2

Subsurface Data

The NTAS 15 subsurface telemetry system used an inductive subsystem developed at WHOI, and transmitted via an Iridium modem.

The inductive modem transmits data from 5 SBE 37s and a single current meter. A record time is provided by the Seabird Inductive Modem (SIM) and represents the time of receipt of the last sample by the SIM. To adjust the time word in the Iridium data stream, we have subtracted 30 minutes, so time is approximately at the center of the hourly sample.

Inductive data listing: Complete
Temperature plot Velocity plot

Subsurface Instrumentation

The instruments are sampled once per hour. The ID# controls the position of the instruments' data within the Iridium message.

IDDepthMakeModelSNRateM
0310SeabirdSBE371340910
4113NortekAquadopp1230920
0425SeabirdSBE371341010
0540SeabirdSBE371341110
0755SeabirdSBE371341210
0870SeabirdSBE371341310

Wave Data

The NTAS buoy is equipped with an NDBC WAMDAS Wave system. The wave data is available at NDBC's Station 41060 page.

Last updated: Apr 4, 2016.