|
Recent News:
2008-04-09: GHRSST Archive Adds REMSS MW+IR Global L4 Analysis
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive added a new global Level 4 SST analysis product
from Remote Sensing Systems (REMSS) knows as the "MRIR optimal
interpolation SST". This product line using AMSR-E, TMI, and
MODIS observations, and
commences with data from 21 August 2005 and is produced daily on
a 9 km grid. Thanks to Chelle Gentemann and the team from
from Remote Sensing Systems for bringing these new products into GHRSST!
2008-03-14: GHRSST Archive Adds European RDAC Galapagos and Northwest
European Shelves Ultra-high resoltuion L4 ODYSSEA Analyses
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive added two new regional Level 4 SST analysis products
generated using the the European RDAC's ODYSSEA system.
These new product lines, one for the region around the Galapagos
Islands and the other for the Northwest European Shelves,
commence with data from 23 January 2008 and are produced daily on
a 0.02 degree (2 km) grid. Thanks to Jean-Francois Piolle and the team
from IFREMER/CERSAT for bringing these new products into GHRSST!
2008-12-18: GHRSST Archive Exceeds 10 Terabytes!
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive surpassed 10 Terabytes of compressed data in its
collection. These data span 546516 netCDF files and are organized
into 34836 Archival Information Packages (also known as NODC
accessions). Each Archival Information Package contains the files
from an individual data set from a given day. For example, all of
the JPL MODIS Aqua Level 2P data from Dec 1, 2007 are organized
into one of these packages.
2007-12-18: GHRSST Archive Adds European RDAC Global L4 ODYSSEA Analysis
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive added a new global Level 4 SST analysis product called
ODYSSEA, created by the European RDAC. This new product line
comments with data from 26 September 2007 and is produced daily on
a 0.10 degree grid. Thanks to Jean-Francois Piolle and the team
from IFREMER/CERSAT for bringing this new product into GHRSST!
2007-12-18: GHRSST Archive Adds DMI North Sea - Baltic L4 Analysis
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive added a new Level 4 SST analysis product for the North Sea
and Baltic region, created by the new Danish Meteorological
Institute (DMI) RDAC. This new product line commences with data
from 04 June 2007 and is produced daily on a 0.03 degree
latitude-longitude grid. Thanks to Jacob Hoyer and the DMI team
for their efforts to bring this new product into GHRSST!
2007-12-07: GHRSST Archive tops 9 Terabytes and a half of a million files
Today the GHRSST Long Term Stewardship and Reanalysis Facility
archive holdings exceeded 9 terabytes (compressed, approximately
180 terabytes uncompressed) and over 500,000 netCDF data files.
Archive operations continue to ingest about 1000 netCDF files
containing roughly 23 gigabytes of data per day. In the coming
weeks, the LTSRF also expects to begin receiving new global L4
analysis products as well as regional analysis products for the
Mediterranean and North Sea/Baltic Sea regions.
2007-11-08: MetOp-A AVHRR Global Area Coverage data now available!
The US Naval Oceanographic Office (NAVO) has begun delivering
Global Area Coverage data from the AVHRR onboard the MetOp-A
platform. This dataset begins with observations on 26 September
2007. Thanks to Doug May and his team from NAVO for adding this
important dataset to the GHRSST collection!
2007-11-01: Two new RSS Feeds added to GHRSST LTSRF
The GHRSST LTSRF site now has two new RSS feeds to go along with this feed:
one is an Operational Messages feed and the other is an automated
Operational Status feed. The Operational Messages feed is updated manually
whenever changes occur in the archival processes.
The Operational Status feed is updated automatically each day
and indicates the red/yellow/green status of the archival processes and how
many Archival Information Packages (AIPs, or NODC Accessions) were ingested
into the archive that day. The status is set to "red" when no AIPs were
ingested, "yellow" when between 1 and one less than the typical number
ingested each day are ingested (currently, the typical number is 20), and
"green" when the typical number or more are ingested (more than the
expected or typical number can be ingested when backlogs are being
processed).
2007-10-17: "The GHRSST Archive Today" automatic updates on LTSRF site
The GHRSST LTSRF web site now displays on its home page
daily-updated metrics showing archive volume, number of netCDF files,
and the number of NODC accessions. Look under the heading, "The GHRSST
Archive Today". These metrics are updated by a process which begins
automatically each day at 0700 UTC and normally concludes by 0900 UTC.
2007-10-12: GHRSST LTSRF publishes RSS Feed
The GHRSST Long Term Stewardship and Reanalysis Facility (LTSRF) is now
publishing a GHRSST LTSRF RSS news feedlinked to this news page. Users subscribing to this feed
will be provided with occasional updates and announcements from the GHRSST
archives, including announcements of new product lines, planned (and
unplanned!) service outages, and other items of interest to users of GHRSST
data.
2007-08-30: GHRSST Article in Bulletin of the American Meteorological Society
Published
The Bulletin of the American Meteorological Society (BAMS) paper on the
GODAE High Resolution SST project (GHRSST) was published this month:
C. Donlon, I. Robinson, K. S. Casey, J. Vazquez-Cuervo, E. Armstrong, O.
Arino, C. Gentemann, D. May, P. LeBorgne, J. Piollé, I. Barton, H. Beggs,
D. J. S. Poulter, C. J. Merchant, A. Bingham, S. Heinz, A. Harris, G. Wick,
B. Emery, P. Minnett, R. Evans, D. Llewellyn-Jones, C. Mutlow, R. W.
Reynolds, H. Kawamura, and N. Rayner (2007). The Global Ocean Data
Assimilation Experiment High-resolution Sea Surface Temperature Pilot
Project, BAMS, Volume 88, Issue 8, pp. 1197-1213. (DOI:
10.1175/BAMS-88-8-1197)
(PDF)*
2007-07-28: GHRSST archive now exceeds 6 Terabytes!
The compressed volume of the GHRSST archive now exceeds 6 Terabytes,
351,000 netCDF files, and 27,000 accessions. Please see the LTSRF Statuspage for details and for
graphical representations of the archive holdings.
2007-07-10: GHRSST Data Now Available back to 1985!
Thanks to Dr. Richard Reynolds and his team at NOAA's National Climatic
Data Center, GHRSST now has Level 4 gap-free analysis SSTs available back
to 1985. These data are daily, 25 km resolution and created by optimally
interpolating AVHRR Pathfinder V5 datafor the 1985-2005 portion and Operational AVHRR data for the more recent
periods. These data are now available through the LTSRF. See the
Access GHRSST Data page access these
data.
2007-06-11: GHRSST Data Now Available back to 1998!
Thanks to Dr. Chelle Gentemann and her team at the Remote Sensing Systems
RDAC, GHRSST formatted data for AMSR-E and TMI are now back to 2002 and
1998, respectively. These data are now available through the LTSRF. See
the Access GHRSST Data page access these data.
2007-03-15: GHRSST Data Access Tutorial Available
A simple tutorial is now available on accessing GHRSST data from the
GHRSST GDAC and LTSRF. Please see the LTSRF Documentspage for PDF and PowerPoint versions. Comments are welcome and
encouraged!
2007-02-05: GHRSST in the news
GHRSST has appeared in two recent NOAA press releases (NOAA article on the NODC GHRSST LTSRF and NOAA article on the weakening El Niño) and on the NESDIS Spotlight
page.
2007-01-30: GHRSST Data Exceeds 10,000 Accessions!
As of today, the LTSRF contains 10,014 accessions of GHRSST
data!
2007-01-30: Problem with HTTP/FTP/OPeNDAP Links
A problem was discovered today with the system that maintains the
HTTP/FTP/OPeNDAP links into the archive spaces where the GHRSST files
reside. The result of this problem was many empty and missing directories
after approximately day 336 of 2006. No data was ever missing and could
still be found using the Ocean Archive System. The problem has been
resolved and the full set of data access links are now online.
2007-01-23: GHRSST Data Nearing 10,000 Accessions!
As of January 23, 2007, the NODC LTSRF contains 9897 accessions! One
"accession" contains the data from one Regional Data Assembly Center, from
one sensor, for one day. These accessions make up nearly 3 Terabytes of
data, and every day more data are coming into the archive. Currently, data
are available back to 2005 but eventually the archive will contain
reprocessed GHRSST-formatted data back to 1985 and then late 1981.
2007-01-22: GHRSST Article for Bulletin of the AMS accepted
An article describing the GHRSST project has been accepted for publication
in the Bulletin of the American Meteorological Society. No word yet on
when it will appear in print, but stay tuned!
2006-10-26: GHRSST Data Now Being Formally Archived at NODC
NODC has successfully completed the first major phase of its work to
develop the GODAE High Resolution SST (GHRSST) Long Term Stewardship and
Reanalysis Facility (LTSRF, http://ghrsst.nodc.noaa.gov). This first phase
was to implement the archive and long term stewardship aspects of the
system. NODC now automatically acquires, generates metadata, and formally
archives all of the GHRSST satellite SST data sets on a daily basis. These
data are all available via ftp
(ftp://data.nodc.noaa.gov/pub/data.nodc/ghrsst/), http
(http://data.nodc.noaa.gov/ghrsst/), and OPeNDAP
(http://data.nodc.noaa.gov/cgi-bin/nph-dods/ghrsst/) . Currently, there
are over 7500 accessions in the NODC archive system for GHRSST Level 2P and
Level 4 SST data, all of which are searchable via the NODC Ocean Archive
System
(http://www.nodc.noaa.gov/Archive/Search) as
well. There are approximately 1 terabyte of compressed data in the archive
now (about 20 terabytes uncompressed) spanning 2005 and 2006 for AMSR-E,
AVHRR-16, AVHRR-17, AVHRR-18 (GAC and LAC/HRPT) , MODIS Aqua, SEVIRI,
AATSR, and TMI. MODIS Terra and GOES SSTs will be available soon as well.
Approximately 14 new accessions (each of which consists of satellite SST
data produced from one GHRSST Regional Data Assembly Center from one sensor
for one day) are added each day to the archive. The next phase
of NODC's effort is to develop in association with the international
community the ability to reprocess GHRSST data to create global, high
resolution gap-free reanalysis climate data records for SST. NODC will
also continue to augment and improve its archive, access, and stewardship
services for GHRSST data and information.
2006-10-18: GHRSST presented to the GODAE Symposium on Ocean Data Assimilation in
Asia and Oceania, in Beijing China 1
Both Ken Casey and Craig Donlon gave presentations at the GODAE Symposium
held in Beijing, China. Craig presented the overall effort while Ken's
talk focused on the efforts of the GHRSST Long Term Stewardship and
Reanalysis Facility. While in Beijing, Ken and Craig also jointly presented
the GHRSST effort at the Beijing Climate Center, part of the Chinese
Meteorological Agency. Ken's GODAE Symposium presentation is available below:
Casey_GHRSST_Beijing.ppt(10 MB)
Casey_GHRSST_Beijing.pdf(5 MB)
2006-01-26: GHRSST presented to NOAA NPOESS Data Exploitation Team in Suitland, MD
Ken Casey gave a short briefing to the NOAA NPOESS Data Exploitation Team.
The goals of the presentation were simple: to introduce GHRSST to the NOAA
program that will be handing tailored products from NPP and NPOESS. It is
likely that in some way this team would be involved in any future attempts
to get SST data from VIIRS and CMIS (the future sensors to fly on NPP
and/or NPOESS) into a GHRSST compatible format. The presentation is
provided below in PowerPoint and PDF formats:
NDE_GHRSST_26Jan2006.ppt(8 MB)
NDE_GHRSST_26Jan2006.pdf(5 MB)
2005-11-28: US GHRSST Meeting held in Miami FL
At the end of November, US GHRSST team members from NOAA, NASA, Navy,
Remote Sensing Systems, and academia met to discuss future
US contributions and coordination of inputs to the GHRSST system. Ken
Casey's presentation on NOAA's current status on GHRSST-related activities,
focusing on work at the Long Term Stewardship and Reanalysis Facility at
NODC and associated efforts at NCDC is provided below in PowerPoint and
PDF formats:
US_GHRSST_2005Nov28.ppt(13 MB)
US_GHRSST_2005Nov28.pdf(3 MB)
2005-11-07: NOAA GHRSST Meeting held in Silver Spring MD (SSMC3 - Room 4817)
On November 7, 2005, members of the NOAA SST community met in Silver
Spring to discuss the current status and future plans of the GHRSST
international framework. The goals of the meeting were to inform the NOAA
community about NOAA's current involvement in GHRSST, and to discuss
possible future roles for the various NOAA components that deal with SST data
production and management as GHRSST grows into a long-term, sustained
system. Presentation files in PowerPoint (~30 MB) and PDF (~3 MB) used
at the meeting are as follows:
NOAA_GHRSST_2005Nov07.ppt
NOAA_GHRSST_2005Nov07.pdf
2005-10-21: GHRSST Reanalysis Project and Pathfinder Climate Data Records
Featured at MARCDAT-II
During the week of October 17, Ken Casey, Chair of the GHRSST Reanalysis
Technical Advisory Group, and Craig Donlon, Director of the GHRSST Project
Office, gave talks on the GHRSST reanalysis effort and the use of the
AVHRR Pathfinder Climate Data Records as a
fundamental input to the GHRSST reanalysis system at the Second
International Workshop on Advances in the Use of Historical Marine Climate
Data (MARCDAT-II). The
conference was held at the UK Met Office in the Exeter, UK. GHRSST featured
prominently at this meeting as the means of delivering climate-quality
satellite-based SST data to the international community.
2004-10-20: NODC - PO.DAAC Workshop on Establishing the LTSRF
A meeting was held at NODC on October 20, 2004, with PO.DAAC personnel to
establish key technical components of the NODC/PO.DAAC interface. This meeting
was a critical first step in establishing the GHRSST Long Term Stewardship and
Reanalysis Facility (LTSRF) at NODC. A meeting report and related documents
are available below:
| 
