Lecture: Introduction to CW Data Portal
The CoastWatch Data Portal is the collection of services used in data distribution: HTTPS, THREDDS, and ERDDAP. Tying these services together is an interactive Map Viewer that enables a user to access and visualize data prior to use.
CoastWatch Data Portal Map Viewer: https://coastwatch.noaa.gov/cw_html/cwViewer.html Links to an external site.
Map Viewer Introductory Tutorial: https://coastwatch.noaa.gov/cw_html/cwViewer.html Links to an external site.
Lecture Outline:
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- CoastWatch Services: HTTPS, FTP, ERDDAP, THREDDS
- Overview of portal and controls
- Layout
- Information 'banner' -- Reference Date [shows date of displayed image]; Cursor Lat/Long.
- Menu
- Map controls
- Panels - clicking the title will collapse/expand the panel
- Date
- Active Layers [https://coastwatch.noaa.gov/cw_html/cw_spt/aio/videos/portal_video_activelayers.mp4 Links to an external site.]
- CoastWatch Data Layers
- Reference Layers
- Search Results
- Info
- Legend + Layer Tools
- Data
- sea surface temperature Coral Reef Watch SST (1985-present)
- Chlorophyll S-NPP VIIRS Chlorophyll-a 4km (SCI, weekly)
- seascapes
- geostrophic currents Geostrophic Currents (NRT)
- sea surface height anomaly Sea Level Anomaly (NRT)
- sea surface salinity SMOS Salinity (3-day)
- General usage (https://coastwatch.noaa.gov/cw/sites/default/files/DataPortal_HowTo.mp4)
- Single Date vs. Date Range -
- CoastWatch Data Layers
- Image Layers: True Color
- Data Overlays
- Level-1/-2
- Orbits
- Polar: https://geoxc-apps.bd.esri.com/space/satellite-explorer/#norad=43013 Links to an external site.
- Geo: https://geoxc-apps.bd.esri.com/space/satellite-explorer/#norad=41866 Links to an external site.
- Sun Glint
- Coverage
- Reference Data
- Mapped Data (Parameters)
- Usage Scenarios
- Compare resolution or gridding
- 5km vs 2km SST
- Compare same day, multi-parameter
- Layer Tools - Gulf Stream and Eddies
- Compare different days (Active Layers)
- Date Range
- Images show for start date
- Used for Searching for L2 / regional products
- Obtaining Data (NetCDF)
- Data download / Shopping Cart
- Video https://coastwatch.noaa.gov/cw_html/cw_spt/aio/videos/portal_video_download.mp4 Links to an external site.
- Video - https://coastwatch.noaa.gov/cw_html/cw_spt/aio/videos/portal_video_shoppingcart.mp4 Links to an external site.
- Point Time Series - Coral Reef Watch SST (1985-present)
- Tags / CSV data
- Services
- Example pulled from ERDDAP
- Cow Nose Ray
- Activity:
- Using either your own data or the provided dataset (cow nose rays), explore any potential relationships between the data and satellite environmental parameters.
- Make a map; post to slack channel (optional)
- Resources
- Overview Web Page / Intro Tutorial: https://coastwatch.noaa.gov/cw/dataportal.html Links to an external site.
- Map Viewer: https://coastwatch.noaa.gov/cw_html/cwViewer.html Links to an external site.
Datasets to highlight.
- Sea surface temperature
- Coral Reef Watch SST (1985-present)
- URL: https://coastwatch.noaa.gov/cw_html/cwViewer.html?lat=27.00&lon=-80.80&z=3&date=20220731&layer0=basemapWI&layer1=CRWSSTd Links to an external site.
- Chlorophyll
- S-NPP VIIRS Chlorophyll-a 4km (SCI, weekly)
- URL: https://coastwatch.noaa.gov/cw_html/cwViewer.html?lat=27.00&lon=-80.80&z=3&date=20220715&layer0=basemapWI&layer1=chlN20VIIRSx Links to an external site.
- Seascapes
- Geostrophic currents
- Geostrophic Currents (NRT)
- URL: https://coastwatch.noaa.gov/cw_html/cwViewer.html?lat=27.00&lon=-80.80&z=3&date=20220730&layer0=basemapWI&layer1=gosc Links to an external site.
- Sea surface height anomaly
- Sea Level Anomaly (NRT)
- URL: https://coastwatch.noaa.gov/cw_html/cwViewer.html?lat=27.00&lon=-80.80&z=3&date=20220730&layer0=basemapWI&layer1=SLAc Links to an external site.
- Sea surface salinity
- SMOS Salinity (3-day)
- URL: https://coastwatch.noaa.gov/cw_html/cwViewer.html?lat=27.00&lon=-80.80&z=3&date=20220727&layer0=basemapWI&layer1=SMOS3dayd Links to an external site.
- Sample tracking data
- Cow Nose Ray
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