Bronze level automatically awarded US beta
This data has achieved Bronze level on 25 October 2015 which means this data makes a great start at the basics of publishing open data.
U.S. West Coast MODIS Aqua High Resolution CHLA Climatology Fields (July 2002 - March 2014)
Summary
- Type of release
- a one-off release of a set of related datasets
- Data Licence
- Not Applicable
- Content Licence
- Creative Commons CCZero
- Verification
- automatically awarded
- Release Date
- 27 September 2015
- Modified Date
- 11 October 2015
- Publishers
- National Oceanic and Atmospheric Administration, Department of Commerce
- Identifier
- u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014
- Landing Page
- http://catalog.data.gov/dataset/u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014
- Temporal Coverage
- 1 July 2002 — 1 June 2003
- Language
- eng
Community verification
Other people can verify whether the answers on this certificate are correct.
This certificate is automatically awarded.
Sign in to verify or report this certificate
Description
This suite of CHLA and SST climatology and anomaly data products are derived from daily, 0.0125 degree x 0.0125 degree, MODIS Aqua CHLA and SST fields that cover the California Current System (22N - 51N, 155W - 105W) for the 11-year period July 2002 through June 2013. These daily fields, obtained from the NOAA CoastWatch West Coast Regional Node website, were processed using a successive 3x3, 5x5 and 7x7 grid cell hybrid median filtering technique. This technique was found to effectively reduce noise in the daily fields while maintaining features and detail in important regions such as capes and headlands. The resulting median filtered daily fields were then linearly interpolated to a 0.025 degree x 0.025 degree grid and averaged to create 132 monthly mean fields. The seasonal cycles at each 0.025 degree x 0.025 degree grid cell were obtained by fitting each multiyear time series of monthly means to a nine-parameter regression model consisting of a constant plus four harmonics (frequencies of N/(1-year), N-1,4; Risien and Chelton 2008, JPO). Even with the median filtering and the temporal averaging of the daily fields, the highly inhomogeneous nature of the MODIS fields still resulted in regression coefficients that were excessively noisy. We therefore applied the same successive 3x3, 5x5 and 7x7 hybrid median filtering technique, described above, to the regression coefficients before finally spatially smoothing the coefficients using a loess smoother (Schlax et al. 2001, JTECH) with filter cutoff wavelengths of 0.25 degree latitude by 0.25 degree longitude. The seasonal cycles were then calculated from the filtered regression coefficients for each 0.025 degree x 0.025 degree grid cell using the mean and all four harmonics. It is important to note that THIS SUITE OF DATA PRODUCTS IS HIGHLY EXPERIMENTAL and is strictly intended for scientific evaluation by experienced marine scientists.
General Information
-
This data is described at
http://catalog.data.gov/dataset/u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014 Do you think this data is incorrect? Let us know
-
This data is published by
National Oceanic and Atmospheric Administration, Department of Commerce Do you think this data is incorrect? Let us know
Legal Information
-
The rights statement is at
http://catalog.data.gov/dataset/u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014 Do you think this data is incorrect? Let us know
-
Outside the US, this data is available under
Creative Commons CCZero Do you think this data is incorrect? Let us know
-
There are
yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know
-
The content is available under
Creative Commons CCZero Do you think this data is incorrect? Let us know
-
This data contains
no data about individuals Do you think this data is incorrect? Let us know
Practical Information
-
The data appears in this collection
http://catalog.data.gov/organization/noaa-gov Do you think this data is incorrect? Let us know
-
The accuracy or relevance of this data will
go out of date but it is timestamped Do you think this data is incorrect? Let us know
-
The data is
backed up offsite Do you think this data is incorrect? Let us know
Technical Information
-
This data is
machine-readable Do you think this data is incorrect? Let us know
-
The format of this data is
a standard open format Do you think this data is incorrect? Let us know
Social Information
-
The documentation includes machine-readable data for
title Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
description Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
identifier Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
landing page Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
publisher Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
distribution(s) Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
release date Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
modification date Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
temporal coverage Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
spatial/geographical coverage Do you think this data is incorrect? Let us know
-
The documentation includes machine-readable data for
language Do you think this data is incorrect? Let us know
-
The documentation about each distribution includes machine-readable data for
title Do you think this data is incorrect? Let us know
-
The documentation about each distribution includes machine-readable data for
description Do you think this data is incorrect? Let us know
-
The documentation about each distribution includes machine-readable data for
release date Do you think this data is incorrect? Let us know
-
The documentation about each distribution includes machine-readable data for
a URL to access the data Do you think this data is incorrect? Let us know
-
The documentation about each distribution includes machine-readable data for
a URL to download the dataset Do you think this data is incorrect? Let us know
-
Find out how to contact someone about this data at
http://catalog.data.gov/dataset/u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014 Do you think this data is incorrect? Let us know
-
Find out how to suggest improvements to publication at
http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/u-s-west-coast-modis-aqua-high-resolution-chla-climatology-fields-july-2002-march-2014 Do you think this data is incorrect? Let us know