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            CATALANO-BALEARIC SEA (NW Mediterranean)

 Bathymetric Chart

DATA SOURCES

MEDIMAP GROUP (**) Multibeam data:
(Grey references: not used in this sinthesis)

1: Digital Terrain Model from Sezione Geologia Marina, ISMAR Istituto Scienze Marine, Bologna
2: Digital Terrain Model from Ifremer Geociènces Marines, Brest.   "Bathymetric summary of multibeam data (Western Mediterranean)", Editions Ifremer, 1998.  Le Golfe de Lion : Carte Morpho-bathymétrique", Edition Ifremer, 2004
3A : Digital Terrain Model from GRC en Geociències Marines, Universitat de Barcelona. and  Institut de Ciències del Mar (CSIC). Data from R/V Hespérides in the frame of  HC & Mobility Programme European Access to Sea Floor Survey Systems-IOS.
3B : Digital Terrain Model from GRC en Geociències Marines, Universitat de Barcelona EC FPV and FPVI projects, Eurostrataform, Eurodelta and Eurodom, ESF Eurocores pro, West -Med and Spacoma, amd Spanish RTD projecs Grandes and Prodelta.
4: Digital Terrain Model from Multibeam Mapping Group, Instituto Español de Oceanografía, Madrid. "Mapa batimétrico del Mar Balear y Golfo de Balencia, Mediterraneo Occidental", Ediciones del Ministerio de Ciencia y Tecnología, 2001, ZEE Working Group
5: Progress cruise, R/V Le Suroit, 2003, IUEM/Université de Bretagne Occidentale, Brest, as part of the activities carried out within the EC FPV project Eurostrataform.
6: Marajda Cruise, R/V Le Suroit, 2003,  IUEM/Université de Bretagne Occidentale, Brest, and CRAAG, Alger.
7: Digital Terrain Model from Instituto Andaluz de Ciencias de la Tierra, CSIC y Universidad de Granada.
8: Digital Terrain Model from Unitat de Tecnologia Marina, CMIMA/CSIC, Barcelona.  Data from R/V Hespérides in the frame of Spanish RTD Project HITS and IMPULS and ESF Eurocores WESTMED
9: Medee cruise, R/V L'Atalante, 1995. Laboratoire de Géologie, CNRS-Insu, ENS Paris
10. Several R/V L'Atalante and BHO Beautemp-Beaupré transit data in the Mediterranean Sea. Obs. Oceanologique de Villefranche sur Mer
11* : Digital Terrain Model from Inst. de Ciènces del Mar CMIMA/ CSIC of Barcelona. Data from R/V Hesperides in the frame of ALBA92 Project.
* These areas in the MediMap Group map are wrongly attributed to institution number 7.

OTHER DATA SOURCES:

 
A : Interpolated contours data  from FOMAR maps (Inst. de Ciències del Mar-CSIC and IGME), projects: Tortosa, Barcelona and Figueres, published by Ministerio de Industria and other data single beam data from the south of the Ebro Delta.
B : Digital Terrain Model from GEBCO Digital Atlas.
C : Digital Terrain Model from High resolution Multibeam survey AOA Geophysics and Fugro

LAND TOPOGRAPHY DATA:

E::Global 30 Arc-Second Elevation Data Set from USGS (Gtopo30)

SHORELINE:

EUROSION (CORINE) and  ICC, combined

METHODOLOGY

Data Processing:

 In September of 2005 IFREMER-CIESM has published the MediMap group map. In this map is compiled all the data collected with multibeam echo-sounders in the Mediterranean sea. The DTM is distributed with the map. This map is of great interest because reliability and extension, but is still incomplete for the Catalano-Balearic Sea area, except in the zone of the Gulf of Lyon. In order to settle temporarily these blank spaces, corresponding to the zones of smaller depth, all the existing data in the ICM (of much smaller reliability) coming from many geophysical and single channel echo-sounder  cruises in the Catalan shelf basically, have been combined with the data coming from different multibeam sources.

 Data from different multibeam sources where combined  to create a basic working  200 m cell size grid.  This multibeam grid whas combined with others grids created from the digitized contours on the continental shelf. Gebco grided and contours data where used  for deep areas.

ICM survey lines used to obtain data from the continental shelfs.

 
 A "make-up" was necesary in the contact of diferent sources. This make-up was done  removing the worst resolution data (digitited interpolated contours or Gebco data)  without removing any multibeam data. The new grid in  the blanked area, was created  conditioning the anisotropy  of the surrounding data values searching.
The final grid was finally resampled to get a 1km spacing grid of   700 rows x 545 columns  to get the same resolution of the MediMap map considered as public use.
Processing has been done with Surfer 8.01 (Golden Software Inc.)

Grid Geometry

X Minimum:  -0.50036 X Maximum: 5.7006  X Spacing: 0.01138
Y Minimum:  38.4496 Y Maximum: 44.0000 Y Spacing:  0.00793

Datum: WGS-84

Diferent products where created for the final user : raster maps, pdf maps, contour files in DXF vector format and text files.
(*) These data in a 1 km grid  are distributed for free use with the MediMap group map.

REFERENCES:

Acosta, J., 2003. El Promontorio Balear: morfología submarina y recubrimiento sedimentario; PhD Thesis, Univ. Barcelona

Alonso. B. 1986. El sistema del abanico profundo del Ebro. PH. D. Thesis. Universitat de Barcelona.

Alonso, B. (2000). El sistema turbidítico del Ebro: evolución morfo-sedimentaria durante el Plio-Cuaternario. En Valles submarinos y sistemas turbidíticos modernos (Belén Alonso y Gemma Ercilla, eds), CSIC, Barcelona, p. 91 -112.

Carlos Bas,  Enrique Morales y Manuel Rubio. La Pesca en España: Catalunya. Consejo Superior de Investigaciones Científicas, Patronato Juan de la Cierva (ed.). Instituto de Ciencias del Mar, Barcelona 1955. 468 pag.

Canals, M.; Serra, J. i Riba, O. 1983.  Toponímia de la Mar Catalano-Balear. Bol. Soc. Hist. Nat Baleares. v. 1982/2

Grupo de Trabajo ZEE, 2001 Mapa Batimétrico del Mar Balear y Golfo de Valencia (1:500.000) Ministerio de Ciencia y Tecnología - Instituto Español de Oceanografía. I.S.B.N.: 84-931926-8-6   N.I.P.O.: 406-01-007-7

Institut Cartogràfic de Catalunya y GRC en Geociències Marines de la U.B. 2004.Mapa del relleu Submarí de Catalunya 1:250 000. www.icc.es

Medialdea, J., Maldonado, A., Alonso, B., Farrán, M., Giró, S., Díaz, J.I., Vázquez, A. (1986). Mapa Geológico de la Plataforma Continental Española y Zonas Adjacentes. E. 1:200.000. Memoria y Hoja nE 41 y 42. Tarragona. Instituto Geológico y Minero de España. Madrid, vol 1, 79 pp.

Medialdea, J., Maldonado, A.,  Díaz, J.I., Escutia, C., Farrán, M.,  Giró, S., Serra, M., Medialdea, T., y J.T. Vazquez (1989). Mapa Geológico de la Plataforma Continental Española y Zonas Adjacentes. E. 1:200.000. Memoria y Hoja nE 35 y 42E. Barcelona. Instituto Geológico y Minero de España. Madrid, vol 1, 79 pp.

Medialdea, J., Medialdea, T., Vazquez, J.T., Maldonado, A., Alonso, B., Díaz, J.I., Ercilla, G., Farrán (1994). Mapa Geológico de la Plataforma Continental Española y Zonas Adjacentes. E. 1:200.000. Memoria y Hoja n 25 y 25E. Figueres. Instituto Geológico y Minero de España. Madrid, vol 1, 82 pp.

MediMap Group, Loubrieu B, Mascle J. et al. 2005. Morpho-bathymetry of the Mediterranean Sea, CIESM / Ifremer special publications, Atlases and Maps, Two maps at 1 / 2 000 000.

Serge Berné et al. 2004. Le Golfe de Lion : Carte Morpho-bathymétrique, Edition Ifremer