Archive for the ‘Water’ Category

Coastal Water and Coastline

Wednesday, January 10th, 2007

Coastal WatersCoastal WatersOk, the problem with the gaps between the coastline and the coastal waters has been solved. Here is the shapefile which fits smoothly with the country template or the coastline file.

GEBCO – Bathymetry

Monday, January 1st, 2007

GebcoGebco – General Bathymetric Chart of the Oceans – offers a finer resolution of the bathymetry as the Etopo2 at 1-minute. Here is the GRID-download.

Source: GEBCO/NASA
Date: 2003
Resolution: 1 minute

Mean Depth of Coastal Waters

Thursday, December 28th, 2006

Mean DepthHere is the table which shows the mean (as well as other statistical parameters) depth for the Coastal Water Zones.

Coastal Waters

Thursday, December 14th, 2006

ShelfDon’t know if this causes trouble for your calculations or if the calculation gets too inexact: Due to the pixel-based origin of the coastal waters data set, there are “empty cells” close to the coastline… Just so you are aware of it…

Coastal Water

Wednesday, December 13th, 2006

not that simple, the question about coastal water/zones… Most definitions define it to be somewhere between 100-200m, see here.

Histogram
Here is a histogram showing the distribution of the bathymetry; indeed, I would say there is a rather sharp break at -200m…

So, do we go for an “average” of -150m (Wikipedia) or of the “extreme” of -200m ?

Annual Precipitation

Friday, December 8th, 2006

PrecipitationDownload the data set here.Source: WWDR
Date: 2000
Resolution: 30′

Annual Evapotranspiration

Friday, December 8th, 2006

EvapotranspirationDownload the data set here.Source: WWDR
Date: 2000
Resolution: 30′

Annual Runoff

Friday, December 8th, 2006

RunoffDownload the data set here.

Source: WWDR
Date: 2000
Resolution: 30′

Annual River Discharge

Friday, December 8th, 2006

River DischargeDownload the data set here.

Source: WWDR
Date: 2000
Resolution: 30′

Irrigation-Equipped Area

Friday, December 8th, 2006

IrrigationDownload the data set here.

Source: WWDR
Date: 2000
Resolution: 30′