Data Services : LAS

Live Access Server (LAS)

LAS logo

Developed by: NOAA Pacific Marine Environmental Laboratory (PMEL), LAS info

Summary:

LAS provides many options for producing high-quality maps and plots of gridded data.

Suggested use:

  • Our most capable interface for producing maps and plots of gridded time series, such as our forecast models.

Pros:

  • Wide variety of maps and plots possible, including depth profiles, Hovmöller diagrams, line plots, scatter plots, difference plots, and time series animations.
  • Several options for customizing the plot style.
  • Zoom into maps by drawing a selection box.

Cons:

  • Limited data download capabilities and output formats.
  • No RESTful (URL-based) data download mechanism. Tip: Though an OPeNDAP service is provided (via F-TDS), we suggest that you use our primary TDS server for better metadata and other features.
  • Some users may dislike the small font used in the plots, and text will occasionally overlap and become illegible.
  • Coastlines are coarse in some areas and no basemaps are provided, such as satellite imagery, Google-like maps, or other geographic aids.
  • Cannot drag/pan maps, click on them to query data, or double-click to zoom.

Data offerings:

  • For gridded data only. LAS does not support point data sets or our other non-gridded data.
  • Includes all of our available forecast models and a few other gridded data sets like bathymetry.
  • We have not yet included any satellite data.

Screenshots:

Data types:

  • grids

Services:

  • OPeNDAP

Output formats:

  • NetCDF
  • DODS binary (OPeNDAP)
  • ArcGrid
  • PNG
  • KML
  • ASCII text table

Metadata:

  • not viewable within interface; packaged with downloaded data as attributes.

Viewers:

  • makes maps, time series plots, transects, depth profiles, and scatter plots
  • zoomable maps and plots
  • generates vector maps (wind, currents) from u (eastward) and v (northward) velocity components

Additional features:

  • Produce animations of maps over time.
  • Compare maps and produce difference plots between times, variables, or data sets.
  • Apply rudimentary analyses to the plotted data: average, minimum, maximum, sum, or variance.
  • Customize maps for viewing in Google Earth.
Data Interoperability

Plug-and-play with PacIOOS data in your chosen software or programming language using standardized web services protocols like OPeNDAP, Web Map Service (WMS), Sensor Observation Service (SOS), NetCDF Subset Service (NCSS), and other open access methods. Please contact us at info@pacioos.org if you have any questions!