Data:IBCAO: Difference between revisions

Revision as of 10:45, 24 March 2013

IBCAO dataset information page

Short Description

Color hillshade of Arctic Ocean bathymetry

Statement: Integrated bathyemtric-topographic DEM of the Arctic Ocean; 500-meter cell size

Abstract: International Bathymetric Chart of the Arctic Ocean (IBCAO). The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64 degrees North, for use by mapmakers, researchers, and others whose work requires a detailed and accurate knowledge of the depth and the shape of the Arctic seabed.

IBCAO Version 3.0 represents the largest improvement since 1999 taking advantage of new data sets collected by the circum-Arctic nations, opportunistic data collected from fishing vessels, data acquired from US Navy submarines and from research ships of various nations. Built using an improved gridding algorithm, this new grid is on a 500 meter spacing, revealing much greater details of the Arctic seafloor than IBCAO Version 1.0 (2.5 km) and Version 2.0 (2.0 km). The area covered by multibeam surveys has increased from ~6 % in Version 2.0 to ~11% in Version 3.0.

Data format

Data type:	Topography
Data origin:	Modeled
Data format:	ArcExport, KMZ, NetCDF
Other format:
Data resolution:	500 meter cell size
Datum:	Polar stereographic projection, geographic (horizontal); MSL (vertical)

Data Coverage

Spatial data coverage: Bathymetric data north of 64 degrees North
Temporal data coverage: Time averaged
Time period covered: up to the present

Availability

Download data: http://www.ngdc.noaa.gov/mgg/bathymetry/arctic/downloads.html
Data source: http://www.ngdc.noaa.gov/mgg/bathymetry/arctic/

References

Jakobsson, M., L. A. Mayer, B. Coakley, J. A. Dowdeswell, S. Forbes, B. Fridman, H. Hodnesdal, R. Noormets, R. Pedersen, M. Rebesco, H.-W. Schenke, Y. Zarayskaya A, D. Accettella, A. Armstrong, R. M. Anderson, P. Bienhoff, A. Camerlenghi, I. Church, M. Edwards, J. V. Gardner, J. K. Hall, B. Hell, O. B. Hestvik, Y. Kristoffersen, C. Marcussen, R. Mohammad, D. Mosher, S. V. Nghiem, M. T. Pedrosa, P. G. Travaglini, and P. Weatherall, The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophysical Research Letters, doi: 10.1029/2012GL052219.

@@ Line 1: / Line 1: @@
 {{Data description
-|One-line data description=International Bathymetric Chart of the Arctic Ocean (IBCAO)
+|One-line data description=Integrated bathyemtric-topographic DEM of the Arctic Ocean; 500-meter cell size
-|Extended data description=The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64 degrees North, for use by mapmakers, researchers, and others whose work requires a detailed and accurate knowledge of the depth and the shape of the Arctic seabed.
+|Extended data description=International Bathymetric Chart of the Arctic Ocean (IBCAO). The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64 degrees North, for use by mapmakers, researchers, and others whose work requires a detailed and accurate knowledge of the depth and the shape of the Arctic seabed.
-Version 2.0 of the IBCAO Grid is now available for downloading along with maps that are suitable for plotting. This new update is the most comprehensive since the first release of IBCAO in 2000 and includes the recent years of multibeam mapping. The resolution of the Polarstereographic grid has been increased from 2.5-km to 2-km. The compilation of IBCAO Version 2.0 is described in a Geophysical Research Letter article.
+IBCAO Version 3.0 represents the largest improvement since 1999 taking advantage of new data sets collected by the circum-Arctic nations, opportunistic data collected from fishing vessels, data acquired from US Navy submarines and from research ships of various nations. Built using an improved gridding algorithm, this new grid is on a 500 meter spacing, revealing much greater details of the Arctic seafloor than IBCAO Version 1.0 (2.5 km) and Version 2.0 (2.0 km). The area covered by multibeam surveys has increased from ~6 % in Version 2.0 to ~11% in Version 3.0.
 |Upload image dataset=IBCAO.png
-|Caption dataset image=IBCAO map of Technical User's guide
+|Caption dataset image=Color hillshade of Arctic Ocean bathymetry
 }}
 {{Data format
@@ Line 10: / Line 11: @@
 |Data origin=Modeled
 |Data format=ArcExport, KMZ, NetCDF
-|Data resolution=2km
+|Data resolution=500 meter cell size
-|Data projection=Polar stereographic projection
+|Data projection=Polar stereographic projection, geographic (horizontal); MSL (vertical)
 }}
 {{Dataset coverage
-|Data spatial coverage=Bathymetric data North of 64 degrees North
+|Data spatial coverage=Bathymetric data north of 64 degrees North
-|Data temporal coverage=Time snap shot
+|Data temporal coverage=Time averaged
-|Data time period covered=2008 (ongoing updates)
+|Data time period covered=up to the present
 }}
 {{Dataset availability
@@ Line 23: / Line 24: @@
 }}
 {{Data references
-|Key references dataset=Jakobsson, M., Macnab, R., Mayer, L., Anderson, R., Edwards, M., Hatzky, J., Schenke, H-W., and Johnson, P., 2008, An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses, v. 35, L07602, Geophysical Research Letters, doi:10.1029/2008GL033520
+|Key references dataset=Jakobsson, M., L. A. Mayer, B. Coakley, J. A. Dowdeswell, S. Forbes, B. Fridman, H. Hodnesdal, R. Noormets, R. Pedersen, M. Rebesco, H.-W. Schenke, Y. Zarayskaya A, D. Accettella, A. Armstrong, R. M. Anderson, P. Bienhoff, A. Camerlenghi, I. Church, M. Edwards, J. V. Gardner, J. K. Hall, B. Hell, O. B. Hestvik, Y. Kristoffersen, C. Marcussen, R. Mohammad, D. Mosher, S. V. Nghiem, M. T. Pedrosa, P. G. Travaglini, and P. Weatherall, The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophysical Research Letters, doi: 10.1029/2012GL052219.
 }}