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

Sponsors
to NOAA Web sitePrincipal funding is provided by (NOAA) Office of Climate Observations (OCO).
Data Links
See Data Archive page, above for delayed-mode data.
NTAS-XI
Deployed: November 25, 2011
Argos
Text files:
Daily transmission: Logger 3     Logger 6
Complete listing: ASIMet1     ASIMet2
NetCDF files:
Data: Logger 3     Logger 6
Metadata: Logger 3     Logger 6
Plots: plot 1     plot 2


Real Time Data

NTAS-XI

The eleventh NTAS buoy was launched November 25,2011, at 1800 UTC. In addition to an Iridium modem transmitting data from the System 2 logger, the mooring includes a subsurface telemetry engineering test system consisting of an inductive modem transmitting through a second Iridium modem. Links to near-real-time data and a description of the system are on the right-hand column of this page.


Surface Data

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 note on resolution, and one on ASIMet data formats.

ASIMet plot 1
plot1


ASIMet plot 2
plot2

Subsurface Data

The NTAS 11 subsurface Iridium modem telemeters data from an inductive modem.

The inductive modem transmits data from 3 SBE 37s, 2 SBE 39s, and a Nortek Aquadopp current meter. 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 the center of the hourly sample.

Inductive data listings: Daily Full
Temperature plots: This week Full
Current Velocity plots: This week Full

Subsurface Instrumentation

The rate listed is the sample rate, in minutes, however the transmited data is subsampled once per hour; the sample rate provides a time window within which the sample may have been taken. The ID# controls the position of the instruments' data within the Iridium message.

InstrumentS/N:ID#Depth (m)Rate (min)
SBE39446271010
Nortek6108411320
SBE37P067132510
SBE37068354510
SBE37068546510
SBE39446388010

Wave Data

The NTAS 10 and 11 buoys were equipped with NDBC WAMDAS Wave systems. Wave data is available at NDBC's Station 41060 page.

Last updated: December 3, 2011.