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Global 15 x 15 Minute Grids of the Downscaled Population Based on the SRES B2 Scenario, 1990 and 2025

Entry ID: CIESIN_SEDAC_SDP_GPOP_B2

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Summary

Abstract: Taken from the accompanying report:

Oceanographic measurements were collected aboard the Aurora Australis on cruise au0806 (voyage 6 2007/2008, 22nd March 2008 to 17th April 2008). This cruise completed the CASO oceanographic program begun on the CEAMARC cruise (au0803, voyage 3 2007/2008), with a full occupation of the SR3 transect between Antarctica and Tasmania.

CASO program objectives were:
... 1. to measure changes in water mass properties and inventories throughout the full ocean depth between Australia and Antarctica along 140oE (the CLIVAR/WOCE repeat section SR3), as part of a multi-national International Polar Year program to obtain a circumpolar snapshot of the Southern Ocean in austral summer 2007-8;
2. to estimate the transport of mass, heat and other properties south of Australia, and to compare results to previous occupations of the SR3 line and other sections in the Australian sector;
3. to deploy moorings near the Adelie Depression (142-145oE) as part of a joint Australia-France-Italy program to monitor changes in the properties and flow of Adelie Land Bottom Water;
4. to identify mechanisms responsible for variability in ocean climate south of Australia.
The CASO program (with a full occupation of the SR3 transect) was originally scheduled for a single cruise. The shipping schedule was re-arranged following an unexpected period in drydock, due to a problem with the ship's thrusters, and as a result the CASO program was split over the two cruises. Several of the southern stations occupied on the first cruise au0803 were repeated on the second cruise au0806, to minimise the impact on the data set of the time gap between the cruises.
A total of 131 CTD vertical profile stations were taken on au0803, and 73 CTD station were taken on au0806, most to within 20 metres of the bottom. During the 2 cruises, over 2900 Niskin bottle water samples were collected for the measurement of salinity, dissolved oxygen, nutrients (phosphate, nitrate+nitrite and silicate), 18O, CFC's, dissolved inorganic carbon, alkalinity, 14C, dissolved organic carbon, density (i.e. analysis of the effect of water composition on water density), germanium/silica/boron isotopes, trace metals, neodymium, chlorophyll-a, cell counts, pigments, genetic analyses, and other biological parameters, using a 24 bottle rosette sampler. Full depth current profiles were collected by an LADCP attached to the CTD package, while upper water column current profile data were collected by a ship mounted ADCP. Data were also collected by the array of ship's underway sensors.
This report describes the processing/calibration of the CTD data, and details the data quality. An offset correction is derived for the underway sea surface temperature and salinity data, by comparison with near surface CTD data. CTD station positions are shown in Figures 1 and 2, while CTD station information is summarised in Table 1. Mooring and drifter deployments/recoveries are summarised in Table 14. Mooring data from the Adelie Depression deployments are discussed in the mooring data reports Rosenberg (unpublished report, 2009) and Meijers (unpublished report, 2009). Further cruise itinerary/summary details can be found in the voyage leader reports (Australian Antarctic Division unpublished reports: Riddle, V3 2007/08 VL report; Rintoul, V6 2007/08 VL report). Hydrochemistry and CFC cruise reports are in Appendix 1 and Appendix 2.

Details about the data are available in a readme file and a full report in the download file.

Related URL

Link: GET DATA

Description: Download point for the CTD data

Link: VIEW PROJECT HOME PAGE

Description: Public information for ASAC project 2652

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Description: Public information for ASAC project 2792

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Geographic Coverage

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Spatial coordinates

	N: -42.0	S: -64.0	E: 147.0	W: 139.0

Min Depth: 0 M Max Depth: 4892 M

Temporal Coverage

Start Date: 2008-03-22

Stop Date: 2008-04-17

Location Keywords

OCEAN > SOUTHERN OCEAN

GEOGRAPHIC REGION > POLAR

Science Keywords

ATMOSPHERE > AEROSOLS > AEROSOL BACKSCATTER

ATMOSPHERE > AEROSOLS > AEROSOL EXTINCTION

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

NASA DC-8 > NASA Douglas DC-8

Instrument

DIAL > Differential Absorption Lidar

LASE > Lidar Atmospheric Sensing Experiment

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

GRIP (HURRICANE) > Genesis and Rapid Intensification Processes

CWIC > CEOS WGISS Integrated Catalog

Access Constraints none

Use Constraints none

Ancillary Keywords

EOSDIS

NASA DC-8 Aircraft

Data Set Progress

COMPLETE

Data Center

Global Hydrology Resource Center, Marshall Space Flight Center, NASA

Data Center URL: http://ghrc.nsstc.nasa.gov/
Dataset ID: griplase

Data Center Personnel
Name: GHRC USER SERVICES OFFICE Phone: 256-961-7932 Fax: 256-961-7859 Email: ghrcdaac at itsc.uah.edu Contact Address: GHRC User Services Office Global Hydrology Resource Center (GHRC) 320 Sparkman Drive City: Huntsville Province or State: AL Postal Code: 35805 Country: USA

Distribution

Distribution Media: FTP

Distribution Size: 9.5 GB day/flight

Distribution Format: ASCII, tab delimited

Fees: none

Personnel

SYED ISMAIL

Role: INVESTIGATOR

Email: Syed.Ismail-1 at nasa.gov

Contact Address:

NASA Langley Research Center

City: Hampton

Province or State: VA

Postal Code: 23681

Country: USA

RICHARD FERRARE

Role: TECHNICAL CONTACT

Email: richard.a.ferrare at nasa.gov

Contact Address:

NASA Langley Research Center

City: Hampton

Province or State: VA

Postal Code: 23681

Country: USA

SHERRY HARRISON

Role: DIF AUTHOR

Phone: 256-961-7973

Email: ghrcdaac at itsc.uah.edu

Contact Address:

320 Sparkman Dr.

City: Huntsville

Province or State: AL

Postal Code: 35805

Country: USA

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2011-05-26

Last DIF Revision Date: 2012-05-01

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