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Reverb. Mirador Giovanni …. Client Data Retrieval. ECHO Open Search. Open Search. Searching Ordering. Multi-format Retrieval ECHO10 ISO 19115. REST API. Authors: Doug Newman ( [email protected] ), Andrew Mitchell ( [email protected] ). ECHO Catalog. What is ECHO?. - PowerPoint PPT Presentation
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What is ECHO?
ECHO Open Search
https://api.echo.nasa.gov/opensearch
ECHO FactsNASA’s Earth Observing System ClearingHOuse (ECHO) acts as the core metadata repository for NASA’s Earth Observing System Data and Information Systems data centers, providing a centralized mechanism for metadata and data discovery and retrieval. ECHO has recently made strides to restructure its API; allowing data partners to streamline and synchronize their metadata ingest using RESTful web services as well as providing an ESIP and OGC compliant OpenSearch implementation.
• 3500+ Available Collections• Over 120 million Granules• 41 million ECHO hosted Browse Images• 2TB Data Index Covers Petabytes of Data• 78K+ registered users, utilizing EOSDIS URS• 13 Active Data Partners • Several Clients in Test & Evaluation• LANCE Near Real Time Data
ECHO and OpenSearch
ESIP Federated Search, based on the OpenSearch convention, is a simple framework for doing a federated query among participating members for Earth science data. ECHO provides standards-based access to its public catalog through an implementation of OpenSearch.
ECHO Open Search supports the following standards,• OpenSearch 1.1• ESIP Discovery 1.2• OGC® OpenSearch GeoSpatial and Temporal Extensions OGC 10-032r3
Datasets and granules can be queried using the following constraints,• keywords (dataset only)• spatial (bounding box, geometry, place name)• temporal (start, end)• instrument (dataset only)• short name (granule only)• version ID (granule only)
ECHO/NASA POC: [email protected]
Authors: Doug Newman ([email protected]), Andrew Mitchell ([email protected])
How Can I Use It?
OpenSearch Description Documents (OSDDs):https://api.echo.nasa.gov/opensearch/datasets/descriptor_document?client_id=dughttps://api.echo.nasa.gov/opensearch/granules/descriptor_document?client_id=dug
Granule search:
curl "https://api.echo.nasa.gov/opensearch/granules.atom? clientId=dug& shortName=MOD02QKM&versionId=5& dataCenter=LAADS& boundingBox=-180.0%2C-90.0%2C180.0%2C90.0& startTime=2002-05-04T03A00-04%3A00& endTime=2009-05-04T00%3A00%3A00-04%3A00& numberOfResults=10&cursor=0”
Granule result:
<?xml version="1.0" encoding="UTF-8"?> <feed esipdiscovery:version="1.2" xmlns="http://www.w3.org/2005/Atom" xmlns:esipdiscovery="http://commons.esipfed.org/ns/discovery/1.2/" xmlns:os="http://a9.com/-/spec/opensearch/1.1/">
<os:totalResults>50321</os:totalResults> <os:itemsPerPage>10</os:itemsPerPage> <os:startIndex>1</os:startIndex>
<entry xmlns:echo="http://www.echo.nasa.gov/esip" xmlns:georss="http://www.georss.org/georss/10" xmlns:gml="http://www.opengis.net/gml" xmlns:time="http://a9.com/-/opensearch/extensions/time/1.0/">
<id>G19324-LAADS</id>…
</entry>
ECHO Catalog
REST API
ReverbOpen Search
MiradorGiovanni
…
Clie
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Retr
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• Multi-format Retrieval• ECHO10• ISO 19115
• Searching• Ordering
Documentation and Support
• http://earthdata.nasa.gov/echo
• Scalable• Fault-tolerant• Recoverable• Secure• Loosely coupled• Ease of client development
http://en.wikipedia.org/wiki/Representational_state_transfer
Why RESTful?