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Your
query was:
an="IN33B-1186"
HR: 1340h
AN: IN33B-1186
TI: MODster:
Namespaces and Redirection for Earth Science Data
AU: Frew, J
EM: frew@bren.ucsb.edu
AF: Donald Bren School of Environmental Science and
Management, University of California, Santa Barbara, CA 93106-5131 United
States
AU: Metzger, D
IN33B-1186 AF: Donald Bren School of Environmental
Science and Management, University of California, Santa Barbara, CA
93106-5131 United States
AU: * Slaughter, P
IN33B-1186 AF: Donald Bren School of Environmental
Science and Management, University of California, Santa Barbara, CA
93106-5131 United States
AB: MODster is a distributed, decentralized
inventory server for Earth science data granules (standard units of data
content and structure.) MODster connects data granule users (people who know
which specific granule they want, but who don't know who has it or how to get
it) with data granule providers (people or institutions that keep granules
accessible online.) * If you're a provider, you can tell MODster which
granules you have and where they live (i.e., their URLs.) * If you're a user,
you can ask MODster for a granule, and it will transparently redirect your
request to whomever has it. The key to making this work is a standard granule
namespace. A granule namespace is a naming convention that associates
particular names with particular granules, regardless of where those granules
live. Different Earth science data products have their own granule
namespaces. For example, in the MODIS granule namespace, the granule name
"MOD43A2.A1998365.h5.v8.001.1999001090020.hdf" always refers to
version 1 of the 5th horizontal and 8th vertical tile of the Level 3 16-day
Bi-directional Reflectance Distribution Function product, acquired by the
MODIS Terra sensor on 31 December 1998 and generated on 01 January 1999 at
9:00:20 AM. A MODster URL is simply a standard way of referring to a data
product namespace and one of its granules. MODster URLs have the general form
"http://server/namespace/granule" where "granule" is a
granule name that conforms to a granule namespace, "namespace" is a
MODster namespace, which is the name of a granule namespace whose conventions
are known to MODster, and "server" is a MODster server, which is an
HTTP server that can redirect namespace/granule requests to granule
providers. A MODster URL with no granule component gets a description of the
MODster namespace, its authority (the persons or institutions responsible for
documenting and maintaining the naming convention), and also any services for
that MODster namespace that the MODster server supports. Our current MODster
implementation allows granule providers to explicitly register their
granules, and can also crawl provider sites looking for granules whose names
match specific rules or regular expressions.
UR: http://modster.bren.ucsb.edu:8080/
DE: 0525 Data management
SC: Earth and Space Science Informatics [IN]
MN: Fall Meeting 2005
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