SAFARI 2000 Data Activities at the ORNL DAAC

SAFARI 2000 Data Activities at the ORNL DAAC Bob Cook, Les Hook, Stan Attenberger, Dick Olson, and Tim Rhyne Oak Ridge National Laboratory

Overview • Mercury and Metadata Editor available • SAFARI 2000 data available from Mercury (43 data sets) – – Field data for Kalahari Transect Point and Gridded Regional Data Sets Links to Remote Sensing products Site ancillary data available for Mongu and Skukuza • Access to Land Validation and Global data registered in other versions of Mercury • MODIS data for Mongu and Skukuza sites to be posted (Summer 2001) • Tools for evaluating Mercury use being developed 2

ORNL DAAC’s Support to SAFARI 2000 q Use Mercury to make data readily available to the project team both in the United States and southern Africa q After the SAFARI 2000 project, to assist in preparing selected data for archive and distribution to the public 3

Mercury Overview 1. The data provider uses an editor provided by ORNL to create a metadata file containing links to the data and documentation 2. Mercury harvests the Mercury is used tometadata assistand anbuilds an index investigator with documenting ORNL Metadata Index data and making these data Data and documentation available to others. 5. Data and documentation are downloaded directly from the data provider 3. Users query the index, which returns full metadata, including links back to the data provider 4. User links to data provider’s server User 4

Activities • Mercury Metadata Editor established at ORNL DAAC and at SAFARI 2 K Data Center at South Africa • Metadata Editor Lite (MELite) – standalone editor that produces files to be uploaded to the on-line Metadata Editor (PC platforms) – developed by S 2 K Project (Dozie Ezigbalike), available for download from the S 2 K Web site at Pretoria • Mercury Search system established at ORNL – Mercury harvests metadata from ORNL and Pretoria 5

ORNL Metadata Editor (OME) Screen 6

Pick lists provided 7

On-line help is available Make data set searchable Glossary provided for each term 8

Best Practices for Preparing Ecological and Ground-Based Data Sets to Share and Archive • Best Practices include: 1. 2. 3. 4. 5. 6. 7. Assign Descriptive File Names Use Consistent and Stable File Formats Define the Parameters Use Consistent Data Organization Perform Basic Quality Assurance Assign Descriptive Data Set Titles Provide Documentation • Provided this document to SAFARI 2000, EOS Land Validation, Big. Foot, and LBA projects • Available in booklets and in Bulletin of ESA • http: //www. daac. ornl. gov/DAAC/PI/bestprac. html 9

Metadata Editor Use 10

S 2 K Data Sets in Mercury (with data source) • 6 Field Data – (UVa, BU) • 12 AERONET, SHADOZ , MPL– (GSFC) • 2 Remote Sensing – (GSFC) • 13 Regional (Gridded) – (ORNL) • 4 Regional (Point) – (ORNL) • 6 Historical – (ORNL) 11

Other Data Sets in Mercury • Provide access to related data sets on southern Africa • 11 EOS Land Validation data sets collected in southern Africa • 28 global data sets in the DAAC’s version of Mercury that have data in southern Africa – climate, soil, vegetation, land cover, land use history, hydrology 12

S 2 K Data (43) Land Val Data (11) Global Data (28) 13

1. Fielded Search (using picklists for Project, Site PI, Parameter, etc. ) 14

2. Spatial Search Use Gazetteer to select Country Or enter specific coordinates 15

Or use Map 16

3. Temporal Search 17

Posting MODIS Products for EOS Land Validation • ORNL will post 7 x 7 km cutouts for selected MODIS products for Mongu and Skukuza tower sites (Summer 2001) – Surface Temperature, Surface Reflectance, Vegetation Indices, f. PAR & LAI, Photosynthesis, BRDF – Temporal composites (8 -, 16, 32, or 90 -day composites) – Obtained from MODIS Adaptive Processing System (MODAPS) at GSFC – In ASCII table format and UTM projection, to relate to field measurements 18

Data Concerns • Data Availability: not all SAFARI 2000 data are being registered in Mercury – SAFARI 2000 Policy of encouraging data submittal within 12 months (except students) – EOS Validation 6 -month Policy for data submittal • Data synthesis and integration requires sharing data – Encouragement from S 2 K Leaders and Program Managers to register data in Mercury • Metadata and Documentation: Provide guidance on formats, file organization, units of measure – “Best Practices for Preparing Data Sets” 19

Additional Information • SAFARI 2000 Data and Information: – http: //www. safari 2000. org – Register and request an ID for access • Data Search using Mercury: – http: //mercury. ornl. gov/safari 2 k/ • Metadata Editor: – http: //www. daac. ornl. gov/cgi-bin/MDE/S 2 K/access. pl 20