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

Sponsors
to NOAA Web sitePrincipal funding is provided by NOAA Climate Program Office. (CPO).
Data Links
See Data Archive page, above, for delayed-mode data.
NTAS-XVI
Deployed: January 30, 2017 at 20:31 UTC
Met data text files:
Daily transmission: Logger 16     Logger 12
Complete listing: ASIMet1     ASIMet2
Plots: Plot 1     Plot 2

NTAS-XV
Deployed: February 2, 2016
Recovered: January 31, 2017
Met data text files:
Met data listing: ASIMet1     ASIMet2
NetCDF files:
Data: Logger 5     Logger 6
Metadata: Logger 5     Logger 6
Plots: Plot 1     Plot 2


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-XVI

The sixteenth NTAS buoy was deployed from the R/V Endeavor on Jan 30 at 20:31 UTC.



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 via Iridium

The NTAS 16 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: Daily Complete
Plots: Temperature Velocity

Subsurface Instrumentation

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

IDDepthMakeModelSNRateM
0310SeabirdSBE3766910
4113NortekAquadopp597320
0425SeabirdSBE3768310
0540SeabirdSBE3768410
0755SeabirdSBE3768510
0870SeabirdSBE3768610


NTAS-XV

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

on January 31, 2017 at 11:41 UTC.


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.


plot 1: RH, ATMP,BPR,WIND plot 2: SST,SAL,SWR,LWR,PRC

Subsurface Data via Iridium

The NTAS 15 subsurface telemetry system used an inductive subsystem developed at WHOI, and transmitted via an Iridium modem. The subsystem stopped transmitting in March 2016.

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: Text file
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: Jan 27, 2017.