SAFARI 2000 Data Activities at the ORNL DAAC

Bob Cook, Les Hook,

Stan Attenberger, Dick Olson, and Tim Rhyne

Oak Ridge National Laboratory

22

ORNL DAACORNL DAAC

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

33

ORNL DAACORNL DAAC

ORNL DAAC’s Support to SAFARI 2000

Use Mercury to make data readily available to the project team both in the United States and southern Africa

After the SAFARI 2000 project, to assist in preparing selected data for archive and distribution to the public

Mercury is used to assist an investigator with documenting

data and making these data available to others.

Mercury is used to assist an investigator with documenting

data and making these data available to others.

5. Data and documentationare downloaded directly

from the data provider

4. User links to data provider’s server

2. Mercury harvests the metadata and builds an index

3. Users query the index, which returns full metadata, including links back to the data provider

MetadataIndex

ORNL

Data anddocumentation

1. The data provider uses an editor provided by ORNL to create a metadata file containing links to the data and documentation

User

Mercury OverviewMercury Overview

55

ORNL DAACORNL DAAC

Activities

• Mercury Metadata Editor established at ORNL DAAC and at SAFARI 2K 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 S2K Project (Dozie Ezigbalike), available

for download from the S2K Web site at Pretoria

• Mercury Search system established at ORNL – Mercury harvests metadata from ORNL and Pretoria

ORNL Metadata Editor (OME) Screen

Pick listsprovided

On-line help is available

Glossary provided for each term

Make data set searchable

Best Practices for Preparing Ecological

and Ground-Based Data Sets

to Share and Archive

Robert B. Cook, Richard J. Olson,

Paul Kanciruk, and Leslie A. Hook

Environmental Sciences Division

Oak Ridge National Laboratory

• Best Practices include:1. Assign Descriptive File Names

2. Use Consistent and Stable File Formats 3. Define the Parameters 4. Use Consistent Data Organization 5. Perform Basic Quality Assurance 6. Assign Descriptive Data Set Titles 7. Provide Documentation

• Provided this document to SAFARI 2000, EOS Land Validation, BigFoot, and LBA projects

• Available in booklets and in Bulletin of ESA• http://www.daac.ornl.gov/DAAC/PI/bestprac.html

Best Practices for Preparing Ecological and Ground-Based Data Sets to Share and Archive

1010

ORNL DAACORNL DAAC

Metadata Editor Use

GroupRegistered

Mercury Users

Users With Searchable Data Sets

Searchable Data Sets

Investigators 9 6 9NASA/Goddard Staff 3 1 1DAAC Staff 5 4 33 Total 17 11 43

1111

ORNL DAACORNL DAAC

S2K 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)

1212

ORNL DAACORNL DAAC

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

Global Data(28)

Land Val Data(11)

S2K Data(43)

1. Fielded Search(using picklists for

Project, Site PI, Parameter, etc.)

2. Spatial Search

Use Gazetteer to select Country

Or enter specificcoordinates

Or use Map

3. Temporal Search

1818

ORNL DAACORNL DAAC

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, fPAR & 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

1919

ORNL DAACORNL DAAC

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 S2K 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”

2020

ORNL DAACORNL DAAC

Additional Information

• SAFARI 2000 Data and Information:

– http://www.safari2000.org

– Register and request an ID for access

• Data Search using Mercury:

– http://mercury.ornl.gov/safari2k/

• Metadata Editor:– http://www.daac.ornl.gov/cgi-bin/MDE/S2K/access.pl