1. Christine White, Esri cwhite@esri.com
Growing OPeNDAP Support: Current ArcGIS Workflows and Future Directions
Christine White, Esri

2. Overview Wanted: your input On the Future Roadmap Current Capabilities
ArcGIS
Current Capabilities
On the Future Roadmap
Wanted: your input

3. ArcGIS

4. Natural Science Domains
Geology/Geophysics
Climate Science
Hydrology
Ecology
Agricultural Science
Forestry
Conservation Biology
There are many natural science domains in which GIS is being used effectively to understand how the Earth works.
Ocean Science
Sustainability Science

5. Ocean GIS Initiative esriurl.com/oceanebook Chief Scientist
Project Managers
Software Engineers
Product Engineers
Account Managers
Industry Solutions Managers
Distributors
Federal Science Team
YOU

6. esriurl.com/multid
Vector Field Renderer to display direction/magnitude symbols on the fly within a raster…
Support for multiple dimensions in WMS implementation of ArcGIS for Server…
OpenDAP, netCDF, HDF, GRIB1, GRIB2…
Visualization source: U. of New Hampsire CCOM

7. The ArcGIS Platform ArcGIS For Enterprises Organizations Developers
ArcGIS Desktop
Apps
APIs & SDKs
ArcGIS
For
Enterprises
Organizations
Developers
Individuals
ArcGIS for Server
with Portal
ArcGIS Online

8. Current ArcGIS Capabilities
for DAP

9. Tools in the Desktop software
Mapping, Editing, and Spatial Analysis
Tools in the Desktop software 3D
Extensions
Network
Data Interop
Spatial Analysis
Workflow
Schematics
Data Reviewer
ArcMap
Geostats
Desktop
Desktop
Files
DBMS
Server
Cloud

10. Multidimensional Toolbox – NetCDF support
Comes with ArcGIS Desktop
The core geoprocessing tools Make NetCDF Feature Layer, Make NetCDF Raster Layer, and Make NetCDFTable View of the Multidimension toolbox were designed to provide you with the maximum flexibility for reading a broad range of netCDF-formatted files. However, providing this level of flexibility meant that the tools had to have many parameters. The following tools are designed to provide a simpler way to access netCDF file that contain well-known geometries, such as station and trajectory data.
e_Multidimension_toolbox/ /

11. Multidimensional Supplemental Toolbox – python scripts
Requires the installation of a third-party Python module –
netcdf4-python

12. OPeNDAP to NetCDF tool NetCDF file DAP Server Multi-D OPenDAP Toolbox
Output layer
OPenDAP
to NetCDF
Multi-D
Toolbox

13. What the OPeNDAP to NetCDF tool does
Subset and download data from web-based servers that support the OPeNDAP protocol
Ability to constrain which data are downloaded by specifying specific variables, a spatial extent, and the starting and ending values of the dimensions that define a variable
Output is a NetCDF layer
Use output with other tools from Multi-D box

14. Ingesting netCDF data in ArcGIS
NetCDF data is accessed as
Raster
Feature
Table
Direct read
Exports GIS data to netCDF

15. OPeNDAP to NetCDF Workflow
Demo
OPeNDAP to NetCDF Workflow
ArcGIS 10.1 and higher

21. Post version 10.3
OPeNDAP to Raster

22. OPeNDAP to NetCDF tool
DAP Server
Output layer
OPenDAP
to Raster

23. Output is raster instead of NetCDF file
OPeNDAP to Raster
Ingest OPeNDAP service to create a surface with subsetting capabilities
Similar to the OPeNDAP to NetCDF Supplemental Toolbox tool
Output is raster instead of NetCDF file
No intermediary process necessary to transform the NetCDF to raster

24. Make NetCDF Raster Layer
OPeNDAP to Raster
Make NetCDF Raster Layer
Make WCS Layer
Ingest a Service
Output supports
multiple dimensions
Will conceptually take parts from “Make WCS layer” and “Make NetCDF Raster layer”
From WCS, takes the input as a service and outputs a raster
From Make NetCDF layer, ensures that output layer supports multiple dimensions
Result based on reading a service with subsetting option
Key different between WCS and OPeNDAP output is that WCS is static, with one slice; OPeNDAP is multidimensional, like the make Netcdf raster layer tool already there.

25. Further Details What does it mean that the output is a dynamic raster?
Output is not a file you store, but instead is in memory
Means you can pan around, and get data as you move through map, not load it all at once; just loads what you need for that view
Can send another request and view a different variable (dynamic raster layer) without losing the first one

26. Input from You

27. OPeNDAP to Raster is Ingest oriented and geared toward gridded data
Are there other data types in which you are interested? E.g., station data (wx balloons)
Who are the potential main service providers/users of this tool?

28. Server – Should we?
When we put scientific data in a mosaic, we can expose this through an image service, WMS, WCS, WFS – is there a need to support OPeNDAP in the server piece?
If so, who has this requirement?