Tag: ARGO

PIRATA Array

New Data Set to Improve Tropical Atlantic Ocean and Atmospheric Research

Researchers at NOAA AOML have released a new tropical Atlantic data set that includes several enhancements to improve data accuracy and data collection in the tropical Atlantic. The new data set is called enhanced PIRATA, or ePIRATA, and provides continuous records of upper-ocean temperature, salinity, and currents, together with meteorological data such as winds, humidity, and solar radiation. ePIRATA should prove valuable in better analyzing ocean and atmospheric processes in the tropical Atlantic.

PIRATA, the Prediction and Research Moored Array in the Tropical Atlantic, is a multinational observation network, established to improve knowledge and understanding of ocean-atmosphere variability in the tropical Atlantic. It is a joint project of Brazil, France and the United States of America, motivated by fundamental scientific issues and by societal needs for improved prediction of climate variability and its impact on the countries surrounding the tropical Atlantic basin. PIRATA provides measurements at 18 locations throughout the tropical Atlantic

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The R/V Roger Revelle docked in Fremantle, Australia prior to the GO-SHIP cruise. Image credit: NOAA

AOML Oceanographers Collect Coast to Coast Measurements on the GO-SHIP Indian Ocean Cruise

During the months of March and April, AOML joined an international team of oceanographers to actively sample the Indian Ocean in support of the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP), an initiative to measure and investigate the ocean basins from coast to coast and from top to bottom. Aboard the R/V Roger Revelle, the team transected the Indian Ocean from the Antarctic northward into the Bay of Bengal, collecting seawater samples at 113 stations as part of a multi-decadal effort to measure various ocean properties, including temperature, salinity, nutrients, carbon and other gases.

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Evolution of the mean difference between the time the observation is taken to the time the profile is available at the Global Argo Data Assembly Centers. The reduction of the elapsed time at the beginning of 2012 are due to improvements of the processing system, while the reduction of the elapsed time at end of 2012 is due to switching operational data processing from once daily on an old computer to twice daily on a new and faster computer. Software and schedule changes in 2014 lead to further reductions of the elapsed time. Image Credit: NOAA AOML.

The US Argo Data Assembly Center improves the real-time processing system and adds new float types

The US Argo Data Assembly Center at PhOD used the transition to the NETCDF profile format version 3.0 to consolidate three processes into one process. This major development had multiple benefits. The primary benefit is that during the development stage the rapid changes in the float technology, for example the addition of sensors, were taken into account to increase the adaptability of the software to future changes of floats as well as the NETCDF profile format. Prior to this development, three programs required adaptation when float types with a new combination of sensors was deployed.

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