Critical Zone Observatory Data Discovery Each CZO maintains its own data management system(s) using the data formats it prefers The three CZO’s have a common metadata management system, expressed in tables, where each table record describes a particular data series or dataset, including its URL address CZO Metadata tables are published and accessed through the internet using Web Feature Services (WFS) defined by the Open Geospatial Consortium Metadata table records are linked to geographic features, also published as Web Feature Services to show data location on a base map

CZO Metadata Catalog Server Sierra Nevada Metadata Server Boulder Creek Metadata Server Shale Hills Metadata Server Metadata Catalog Services already exist for point observations time series at the Waters Network Testbed projects A metadata catalog server is a device (e.g. ArcGIS Server, Minnesota Map Server), which can publish CZO metadata in OGC web services format

CZO Data Types 1.Regular Time Series – data measured with automated sensors at a fixed location at regular intervals 2.Irregular Time Series – manually collected field samples from a fixed location at irregular intervals 3.GIS coverages and photos 4.One-Time Collections – rock and soil samples collected once at known position and depth 5.Other Data – LIDAR, land surveys, channel cross- sections, tree surveys, geophysics, snow surveys Point Observations Time Series

Net Radiation (W/m 2 ) PI: Chris Duffy, Sue Brantley, Pat Reed, Henry Lin, …. Shale Hills CZO Point Observations Susquehanna – Upper Juniata River Basin URLNetworkSiteCodeVarCodeBeginDateEndDateName http//…ShaleHillsRTHNet5165/1/2006Net Radiation http//…ShaleHillsRTHNet51710/29/2005Precipitation http//…ShaleHillsRTHNet25165/1/2006Net Radiation Metadata table for Point Observations Time Series Click on the URL retrieves the data file

Metadata for selected data series at observation point H1 Observations Catalog for Waters Network Testbed Project in Corpus Christi Bay displayed over the US Hydrology Base Map from WSDL address and parameters to obtain observations data using GetValues 5 The same metadata structure supports data access through WaterML

Data Access from the CZEN Portal Data Sierra Nevada Metadata Server Boulder Creek Metadata Server Shale Hills Metadata Server Metadata is transmitted in Geographic Markup Language Behind the CZEN portal is a Master Metadata Catalog that is compiled from the CZO metadata services. The Master Catalog supports seamless data searches across the CZO network

HIS Desktop (to be developed in 2009) Harvesting data from web services Observations Models Climate GIS Remote Sensing HIS Desktop can be rebranded to become CZO Desktop if necessary

Data Access from CZO Desktop Sierra Nevada Metadata Server Boulder Creek Metadata Server Shale Hills Metadata Server Each CZO metadata catalog service and thus the CZO data is directly accessible to anyone using CZO Desktop