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2015-06-11T22:39:30Z

Fields:

'''NASA MEaSUREs 2012 ''' 
 
<big>Creating Unified Ocean Color Data Records With UncertaintiesBeyond Chlorophyll: Management, Implementation and Distribution of Innovative Ocean Color Earth Science Data Records</big>
 
PIs: [http://people.eri.ucsb.edu/~stephane/ Stéphane Maritorena], [http://www.icess.ucsb.edu/~davey/ Dave Siegel](UCSB), and [http://www.eos.sr.unh.edu/Faculty/Moore Tim Moore] (UNH)
 
Quick Start

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Click on [[Products]] to access data.
Check [[News]] for recent updates.

 
Project Summary

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The generation of unified satellite data records through the merging of ocean color data from multiple sensors has proven beneficial to the science users community at various levels. First, merged products offer improved coverage of the ocean at daily to monthly time scales, which reduces the uncertainties in estimates derived from those products for both local and global studies. Second, merged data products often have lower uncertainties than the same product from any single sensor. Last, data merging has also proven a powerful tool to identify inconsistencies among the different data sources or issues with the sensors’ radiometry. In all, data merging benefits both the ocean color and biogeochemistry science that uses its data and the inter-sensors calibration/validation activities.

Here, we propose to continue the development of unified and coherent ocean color time series through the merging of data from multiple sensors. We will continue the development of merged ocean color products from the GSM semi-analytical model. This model merges data at the Remote sensing reflectance level and derives several biogeochemically relevant data products simultaneously along with uncertainty estimates at each pixel. In addition, we will also generate merged products from higher level data (e.g. chlorophyll-a concentration) as such products are no longer available to the science community. We will also develop new merged ocean color products. In particular, we will develop a merged remote sensing reflectance product that will allow users to work with a data set with improved spectral resolution and lower uncertainties. Last, uncertainty estimates for all merged products will be generated on a pixel-by-pixel basis. All products and uncertainty estimates will be validated through matchup analyses. The merged records will cover the time span over which multiple ocean color sensors are or will be available (SeaWiFS, MODIS, MERIS, VIIRS, OLCI,…). Both global (9-4 km resolution from level-3 data) and regional (1-4 km resolution from level-2 data) merged products will be developed.

This project is part of the '''M'''aking '''E'''arth '''S'''cience Data Records for '''U'''se in '''R'''esearch '''E'''nvironments ([http://earthdata.nasa.gov/our-community/community-data-system-programs/measures-projects MEaSUREs]) initiative of NASA.

Main Page

2015-06-11T22:30:36Z

Fields: Fields moved page Main Page to Old Measures2006

#REDIRECT [[Old Measures2006]]

Talk:Measures2006

2015-06-11T22:30:36Z

Fields: Fields moved page Talk:Main Page to Talk:Old Measures2006

Check 1 2, check 1 2 3.

- pete

Seems like there are some issues here. I believe we deleted the "donations" from the sidebar before and it's back again.

- norm

Talk:Main Page

2015-06-11T22:30:36Z

Fields: Fields moved page Talk:Main Page to Talk:Old Measures2006

#REDIRECT [[Talk:Old Measures2006]]

2014-01-06T22:42:52Z

Fields:

[[User:Fields|Fields]] ([[User talk:Fields|talk]]) 14:42, 6 January 2014 (PST) Dr O'Malley supplied new 2012 and 2013 CBPM NPP. updated with R2013.1 Aqua

10:59, 26 November 2013 (PST) Dr O'Malley supplied new 2012 and 2013 VGPM NPP - updated with R2013.1 Aqua.

[[User:Fields|Fields]] 23 October 2013 Aqua products from Aug 2012 to present were remade using [http://oceancolor.gsfc.nasa.gov/WIKI/OCReproc2013%282e%291MA.html R2013.1].

[[User:Fields|Fields]] 21:13, 11 July 2013 (UTC) add Dr O'Malley supplied 2013 jan-apr vgpm npp.

18:15, 3 May 2013 (UTC) Dr O'Malley supplied new and updated Aqua CBPM2 NPP post R2013.1

[[User:Fields|Fields]] 22:49, 8 April 2013 (UTC) Dr O'Malley supplied new and updated Aqua VGPM NPP. It was reprocessed after a "bit tighter control on the sst4 values".

[[User:Fields|Fields]] 19:01, 11 March 2013 (UTC) [http://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=4853 R2013.0] has been applied to all Aqua-related products from to 2011-01-01 on.

[[User:Fields|Fields]] 15:50, 20 February 2013 (UTC) Bryan Franz announced "On Monday, 25 February 2013, the OBPG will initiate a partial reprocessing of the MODIS/Aqua ocean color products to incorporate updated instrument calibration. The effect of this change is modest: largest in the 412-nm band, with much smaller impacts to other bands."
[http://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=4853 R2013.0]

[[User:Fields|Fields]] 22:07, 17 January 2013 (UTC) updated Aqua4km for 2012. Also corrected sd Attribute, "Intercept" to be zero. For some V7 mapped images were set to unity.

[[User:Fields|Fields]] 16:41, 14 August 2012 (UTC) Dr O'Malley supplied new R2012 Aqua-based CBPM NPP 8-day and Monthly.

[[User:Fields|Fields]] 18:57, 20 July 2012 (UTC) all Aqua4km GSMbin files had the attribute "Bin Resolution" added, set to "4 km", so SeaDAS7.0 can read it.

[[User:Fields|Fields]] 22:58, 17 July 2012 (UTC) added [http://www.esa.int/esaCP/SEM1SXSWT1H_index_0.html last 2012 Meris] (ESA Meris-Envisat) data from the ODESA data processor, supplied by ARCI-ST. Also updated Aqua/Meris Merged product, Aqua, and Aqua4km.

[[User:Fields|Fields]] 18:44, 6 July 2012 (UTC) Dr O'Malley supplied new R2012 Aqua-based VGPM NPP 8-day and Monthly

[[User:Fields|Fields]] reprocessed and replaced Aqua-related GSM products using [http://oceancolor.gsfc.nasa.gov/WIKI/OCReproc20120MA.html R2012 Aqua]. Some metadata was added to compatibility with future SeaDAS version 7.0. The processing version of the new files was updated to Version 7 (from 6)

[[User:Fields|Fields]] 16:58, 29 March 2012 (UTC) reprocessed and replaced Meris-related GSM products because an indexing error was found. Reprocessed took into account new L3B have 0-relative row/col indices. This applies to Meris, MergedAM, and MergedASM products.

[[User:Fields|Fields]] 16:58, 29 March 2012 (UTC) added missing PSD (2002-2004)

[[User:Fields|Fields]] 19:09, 16 February 2012 (UTC) added description and link to [[PSD]] products.

[[User:Fields|Fields]] 19:59, 2 February 2012 (UTC) Updated Meris and Aqua. Added a new directory, MergedAM, for Aqua/Meris Merged GSM products (post SeaWiFS).

[[User:Fields|Fields]] 22:12, 9 December 2011 (UTC) new Meris (ESA Meris-Envisat) data from the ODESA data processor were supplied by ARCI-ST. Meris GSM products and merged Aqua, SeaWiFS, Meris GSM products were generated.

[[User:Fields|Fields]] 23:09, 21 November 2011 (UTC) Dr O'Malley supplied new Aqua VGPM- 8-day (up to 2011-08-13) and Monthly (up to 2011-07). He also provided updated SeaWiFS based CBPM monthly data.

[[User:Fields|Fields]] 22:39, 8 August 2011 (UTC) Dr O'Malley supplied updated Aqua 8-day composite VGPM NPP data from OSU. dates cover 2008305 (Oct 31) to 2011121 (may 1) (dates are the start of the 8-day interval).

[[User:Fields|Fields]] 18:54, 30 June 2011 (UTC) [http://oceancolor.gsfc.nasa.gov/WIKI/OCReproc20100MA.html R2010 Aqua]and associated Merged products for 2009-01-01 forward have been reprocessed.

[[User:Fields|Fields]] 22:37, 23 June 2011 (UTC) Version [http://oceancolor.gsfc.nasa.gov/WIKI/OCReproc20100MA.html R2010 Aqua] has been released. These data apply to 1-Jan-09 forward. The processing will start as soon as all the files are transfer.

[[User:Fields|Fields]] 22:20, 9 May 2011 (UTC) replaced [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs Aqua and Merged] with Version 6. This is still R2009 Aqua, but uses 6 bands. Also added Aqua4km products. Old 5 bands stuff was relocated to AquaV5 and MergedV5.

* 2011-04-11 I neglected to note that we are transitioning from version 5 to 6.
Version 5, associated with the R2009.1 reprocessing effort (http://oceancolor.gsfc.nasa.gov/forum/oceancolor/board_show.pl?bid=27). Version 6 refers to SeaWiFS R2010.1 (http://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=15555;hl=R2010#pid15555) with the 670 band included, so that 6 wavelengths rather than five were used. For the Merged data, V5 is composed of V5 Aqua and V6 SeaWiFS. We have been waiting for word about what part of the Aqua mission will be reprocessed. When there is version 6 Aqua products they will from 6 bands. V6 Merged will be both V6 Aqua and V6 SeaWiFS. V6 Aqua will likely only differ from V5 after 2007, but will incorporate a additional 6th band (667nm).

* 2011-01-25 Removing Mar-Sep 2010 modis-based vgpm NPP. There was a [http://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=16327 problem with the aqua sst4] used. Dr O'Malley is reproducing the NPP with the corrected Aqua sst4 input.

* 2011-01-21 R2010 8-day SeaWiFS [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/R2010.0/NPP/8day/CBPM2/Seawifs/ CBPM2] replaced with an improved product. Robert O'Malley added "a trap on the maximum growth rate" and some NPP gap-filling to the process.

* 2010-12-22 R2010 [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/R2010.0/NPP/8day/CBPM2/Seawifs/ CBPM2] added. Note CBPM will no longer be produced. Here after NPP produced after 2010 will be the spectral variety and the 2 will be dropped from the name.

note there is an [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/R2010.0/ R2010 area]. It was waiting for Aqua and Merged products to be made public, but that might be a couple more months.

* actual link to CbPM2 model results added. [Sorry]

* 2010-10-26 CBPM2 NPP model results added.

* 2010-10-18 replaced NPP with new data derived after the R2009.1 reprocessing.

* 2010-09-17 add composite data GSMbin added. Like the daily GSMbin counterpart, except GSMcovMask replaced with the number of pixels composited per bin. The confidence intervals (GSMchl_sig, GSMbbp_sig, GSMacdm_sig) for composite data were also added (actually back in July). These were calculated from composite_sig=sqrt(sum(daily_sig.^-2))

* 2010-08-16 all products (Aqua, SeaWiFS, Merged) have been were reprocessed in June using R2009. Today those were swapped in. The new data have the version "5", in the file name.

* 2009-11-18 [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/R2009/Seawifs/ SeaWiFS GSM products] have been regenerated using R2009.1 Rrs.

* 2009-10-23 an [http://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=3133#fp issue] has been discovered with the NIR water-leaving radiance model and iteration process as employed in the SeaWiFS 2009.0 reprocessing. "...we know it will have some effect on coastal retrievals, so we anticipate a 2009.1 reprocessing of SeaWiFS in the near future.

* Orbview 2 has been in Safe Haven since the end of August 2009. No SeaWiFS data have been available.

* site updated 12 Oct 2009: new SeaWiFS R2009 was inverted to make new [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/Seawifs/ SeaWiFS GSM products]. Processing version number incremented to 5.

* Site update 14 Jul 2009: OpenDAP server on line. Access via the [[Services]] page.

* Site update 9 Jun 2009: NPP product family page and links to data added.

* SeaWiFS has been in safe haven since 4/23/2009 (day 113). It is not collecting data, so there will be a gap in SeaWiFS and Merged products. 12:34, 26 May 2009 (PDT)

* Site updates 25 May 2009 -- some features not yet implemented.

* [[Note on missing data]] (22 Apr 2009)