SPANISH NATIONAL PLAN FOR OBSERVATION OF TERRITORY (PNOT)
A. Arozarena-Villar, L. Garcia-Asensio, G. Gillermo Villa-Alcazar, J. Hermosilla-Cardenas, F. Papi-Montanel, N. Valcarcel-Sanz, J.J. Peces-Morera, E. Domenech-Tofiño, C. Garcia-Gonzalez, J.A. Tejeiro-Orellana
National Geographic Institute, Spain
smas@fomento.es
Some
institutions of National and regional levels keep geographic information
databases which are not integrated or are not compatible: different scales,
incomplete cover of Spanish territory (regional databases), different revision
intervals, etc., and normally each institution obtains only the information for
its own needs. In order to solve this problem IGN started the PNOT plan as it
follows.
The main
objectives of PNOT are:
-
Apply
Inspire principles to information on Land Use/Land Cover
-
Share
costs of information and avoid duplicities, so we can obtain better and more
“up to date” information.
-
Obtain
an integrated Information System (spatially, temporal and semantically) that
help different institutions to take coordinated decisions (based on the same
information).
-
Information
obtained must satisfy the requirements of participant institutions, European
Union (Corine Land Cover, GMES…) and rest of social agents.
The
components of PNOT are:
-
National
Plan of Aerial Orthophotography (PNOA)
Orthophotos
of all Spain each two years with 0,50 m pixel size (or less), DTM and DSM
within 2 m obtained from a decentralized production.
-
National
Remote Sensing Plan (PNT)
This
program tries to obtain satellite image coverages of Spain with different
resolutions: high (SPOT 5 HRG 2,5 m and others, each year), medium (LANDSAT 7
ETN, LANSAT 5 TM, TERRA-ASTER…, 1 to 4 months) and low resolution (TERRA-MODIS,
SPOT-VEGETATION…, 1 to 30 days).
-
Information
System of Land Use / Land Cover Information (SIOSE)
This able
to integrate different data of regional and national administrations, which
hopes to achieve a multidisciplinary spatial data infrastructure at
(cartographic equivalent) 1:25.000 scale and updated each 5 years.