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| Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible
| Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| data | graph | M | files | public | OSU Chlorophyll Anomaly V2, MODIS Aqua, West US, 2003-present |
| F I M | background
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| osu2ChlaAnom |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | cdm_data_type | String | Grid |
| attribute | NC_GLOBAL | contact | String | Craig Risien (crisien@coas.oreognstate.edu) |
| attribute | NC_GLOBAL | Conventions | String | CF-1.10, COARDS, ACDD-1.3 |
| attribute | NC_GLOBAL | creator_email | String | crisien at coas.oreognstate.edu |
| attribute | NC_GLOBAL | creator_name | String | Craig Risien |
| attribute | NC_GLOBAL | Easternmost_Easting | double | 255.0 |
| attribute | NC_GLOBAL | geospatial_lat_max | double | 51.0 |
| attribute | NC_GLOBAL | geospatial_lat_min | double | 22.0 |
| attribute | NC_GLOBAL | geospatial_lat_resolution | double | 0.0125 |
| attribute | NC_GLOBAL | geospatial_lat_units | String | degrees_north |
| attribute | NC_GLOBAL | geospatial_lon_max | double | 255.0 |
| attribute | NC_GLOBAL | geospatial_lon_min | double | 225.0 |
| attribute | NC_GLOBAL | geospatial_lon_resolution | double | 0.0125 |
| attribute | NC_GLOBAL | geospatial_lon_units | String | degrees_east |
| attribute | NC_GLOBAL | geospatial_vertical_max | double | 0.0 |
| attribute | NC_GLOBAL | geospatial_vertical_min | double | 0.0 |
| attribute | NC_GLOBAL | geospatial_vertical_positive | String | up |
| attribute | NC_GLOBAL | geospatial_vertical_units | String | m |
| attribute | NC_GLOBAL | infoUrl | String | ??? |
| attribute | NC_GLOBAL | institution | String | Oregon State University - College of Earth, Ocean, and Atmospheric Sciences |
| attribute | NC_GLOBAL | keywords | String | altitude, anomaly, aqua, atmospheric, chla, chla_anomaly, chlorophyll, chlorophyll-a, coast, coastwatch, college, color, data, earth, fields, high, imaging, journal, jpo, moderate, modis, noaa, node, ocean, ocean color, oceanography, oregon, physical, regional, resolution, sciences, sea, spectroradiometer, sst, state, surface, temperature, time, university, US, wcrn, west, west coast |
| attribute | NC_GLOBAL | license | String | The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. |
| attribute | NC_GLOBAL | Northernmost_Northing | double | 51.0 |
| attribute | NC_GLOBAL | product_version | String | 1.0 |
| attribute | NC_GLOBAL | references | String | Risien, C.M., and P.T. Strub. Satellite-Derived Climatologies: The California Current Large Marine Ecosystem. Cooperative Institute for Oceanographic Satellite Studies. Available online at http://cioss.coas.oregonstate.edu/CIOSS/Documents/Published_Reports/Risien_USWC-Sat-Climatology.pdf |
| attribute | NC_GLOBAL | rights | String | The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, CoastWatch, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. |
| attribute | NC_GLOBAL | sourceUrl | String | (local files) |
| attribute | NC_GLOBAL | Southernmost_Northing | double | 22.0 |
| attribute | NC_GLOBAL | spatial_resolution | String | 0.025 degree |
| attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
| attribute | NC_GLOBAL | summary | String | U.S. West Coast Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua High Resolution Chlorophyll-a (CHLA) Anomaly Fields (July 2002 - March 2014). This suite of CHLA and Sea Surface Temperature (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 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, Journal of Physical Oceanography (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. |
| attribute | NC_GLOBAL | testOutOfDate | String | now-40days |
| attribute | NC_GLOBAL | time_coverage_end | String | 2024-11-16T00:00:00Z |
| attribute | NC_GLOBAL | time_coverage_start | String | 2003-01-16T00:00:00Z |
| attribute | NC_GLOBAL | title | String | OSU Chlorophyll Anomaly V2, MODIS Aqua, West US, 2003-present |
| attribute | NC_GLOBAL | Westernmost_Easting | double | 225.0 |
| dimension | time | double | nValues=239, evenlySpaced=false, averageSpacing=33 days 12h 12m 6s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.0426752E9, 1.7317152E9 |
| attribute | time | axis | String | T |
| attribute | time | ioos_category | String | Time |
| attribute | time | long_name | String | Time |
| attribute | time | standard_name | String | time |
| attribute | time | time_origin | String | 01-JAN-1970 00:00:00 |
| attribute | time | units | String | seconds since 1970-01-01T00:00:00Z |
| dimension | altitude | double | nValues=1, onlyValue=0.0 | |
| attribute | altitude | _CoordinateAxisType | String | Height |
| attribute | altitude | _CoordinateZisPositive | String | up |
| attribute | altitude | actual_range | double | 0.0, 0.0 |
| attribute | altitude | axis | String | Z |
| attribute | altitude | fraction_digits | int | 0 |
| attribute | altitude | ioos_category | String | Location |
| attribute | altitude | long_name | String | Altitude |
| attribute | altitude | positive | String | up |
| attribute | altitude | standard_name | String | altitude |
| attribute | altitude | units | String | m |
| dimension | latitude | double | nValues=2321, evenlySpaced=true, averageSpacing=0.0125 | |
| attribute | latitude | _CoordinateAxisType | String | Lat |
| attribute | latitude | actual_range | double | 22.0, 51.0 |
| attribute | latitude | axis | String | Y |
| attribute | latitude | coordsys | String | geographic |
| attribute | latitude | fraction_digits | int | 4 |
| attribute | latitude | ioos_category | String | Location |
| attribute | latitude | long_name | String | Latitude |
| attribute | latitude | point_spacing | String | even |
| attribute | latitude | standard_name | String | latitude |
| attribute | latitude | units | String | degrees_north |
| dimension | longitude | double | nValues=2401, evenlySpaced=true, averageSpacing=0.0125 | |
| attribute | longitude | _CoordinateAxisType | String | Lon |
| attribute | longitude | actual_range | double | 225.0, 255.0 |
| attribute | longitude | axis | String | X |
| attribute | longitude | coordsys | String | geographic |
| attribute | longitude | fraction_digits | int | 4 |
| attribute | longitude | ioos_category | String | Location |
| attribute | longitude | long_name | String | Longitude |
| attribute | longitude | point_spacing | String | even |
| attribute | longitude | standard_name | String | longitude |
| attribute | longitude | units | String | degrees_east |
| variable | chla_anomaly | float | time, altitude, latitude, longitude | |
| attribute | chla_anomaly | _FillValue | float | 1.0E30 |
| attribute | chla_anomaly | _standard_name | String | concentration_of_chlorophyll_in_sea_water_anomaly |
| attribute | chla_anomaly | colorBarMaximum | double | 10.0 |
| attribute | chla_anomaly | colorBarMinimum | double | -10.0 |
| attribute | chla_anomaly | ioos_category | String | Ocean Color |
| attribute | chla_anomaly | long_name | String | Chla Anomaly |
| attribute | chla_anomaly | units | String | mg m-3 |
The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.