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geoportal

A geoportal is a web-based gateway that provides access to geospatial data, services, and related information. It serves as a centralized portal for discovering, retrieving, and sometimes analyzing geographic information resources. Key components typically include a metadata catalog, a search and filtering interface, map visualization with a client-side viewer, and access to geospatial services such as WMS, WFS, and WCS, as well as data downloads.

Functionality includes searching datasets by theme, geography, date, or quality; browsing metadata following standards such as

Standards and interoperability are central to geoportals. They are built to interoperate through open standards such

Architecture typically comprises data storage or access layers, a metadata catalog, a service registry, and a

Use cases include government agencies publishing official datasets; researchers sharing data; planners and emergency responders accessing

ISO
19115/19139
or
Dublin
Core;
viewing
data
on
a
map
with
basemaps;
accessing
service
endpoints
for
programmatic
consumption;
and
downloading
data
in
common
formats
(Shapefile,
GeoJSON,
GeoTIFF).
Many
geoportals
offer
basic
geoprocessing
or
links
to
analysis
tools.
as
OGC
services
(WMS,
WFS,
WCS),
CSW
catalogs,
and
metadata
standards;
European
INSPIRE
directives
influence
national
portals
to
harmonize
data
sharing.
web
client.
Implementations
may
rely
on
platforms
such
as
GeoServer,
MapServer,
or
commercial
GIS
stacks,
with
OpenLayers
or
Leaflet
for
the
viewer.
authoritative
basemaps
and
thematic
layers.