The measurement of depth of water in oceans, seas, or lakes - GEBCO bathymetry gridded data for North Sea / Baltic Sea - Derived Data

**Overview**

This dataset contains global bathymetry, or water depth, measurements from the General Bathymetric Chart of the Oceans (GEBCO), converted into the format needed for WRF's Pre-processing System (WPS). The data are read in for the use of a depth-dependent water surface roughness scheme.

**Data Details**

File is zipped directory topobath_30s which includes the following files:
.txt: 
index

.bil:
08401-09600.13201-14400 
10801-12000.15601-16800 
14401-15600.13201-14400 
18001-19200.15601-16800 
20401-21600.15601-16800 
22801-24000.15601-16800 
25201-26400.15601-16800
08401-09600.14401-15600 
10801-12000.16801-18000 
14401-15600.14401-15600 
18001-19200.16801-18000 
20401-21600.16801-18000 
22801-24000.16801-18000 
25201-26400.16801-18000
08401-09600.15601-16800 
12001-13200.13201-14400 
14401-15600.15601-16800 
18001-19200.18001-19200 
20401-21600.18001-19200 
22801-24000.18001-19200 
25201-26400.18001-19200
08401-09600.16801-18000 
12001-13200.14401-15600 
14401-15600.16801-18000 
18001-19200.19201-20400 
20401-21600.19201-20400 
22801-24000.19201-20400 
26401-27600.16801-18000
09601-10800.13201-14400 
12001-13200.15601-16800 
15601-16800.15601-16800 
19201-20400.14401-15600 
21601-22800.14401-15600 
24001-25200.14401-15600 
26401-27600.18001-19200
09601-10800.14401-15600 
12001-13200.16801-18000 
15601-16800.16801-18000 
19201-20400.15601-16800 
21601-22800.15601-16800 
24001-25200.15601-16800 
27601-28800.16801-18000
09601-10800.15601-16800 
13201-14400.13201-14400 
15601-16800.18001-19200 
19201-20400.16801-18000 
21601-22800.16801-18000 
24001-25200.16801-18000 
27601-28800.18001-19200
09601-10800.16801-18000 
13201-14400.14401-15600 
16801-18000.16801-18000 
19201-20400.18001-19200 
21601-22800.18001-19200 
24001-25200.18001-19200 
10801-12000.13201-14400 
13201-14400.15601-16800 
16801-18000.18001-19200 
19201-20400.19201-20400 
21601-22800.19201-20400 
24001-25200.19201-20400
10801-12000.14401-15600 
13201-14400.16801-18000 
18001-19200.14401-15600 
20401-21600.14401-15600 
22801-24000.14401-15600 
25201-26400.14401-15600

**Data Quality**

The provided 30 arc second GEBCO bathymetry data were masked with WRF's 30-second land mask data and over-water measurements (negative in GEBCO) were converted to depth (positive number relative to water surface). The data were then compared to existing lake depth values in WRF where only minor differences were found.

**Uncertainty**

The land mask data and bathymetry data are not from the same source but were collected in a similar fashion. Areas may exist where GEBCO is providing over-water information while WRF's land mask shows it is land, and vice-versa. These situations are accounted for by setting the depth to a default value where ever inconsistencies are found.

**Constraints**

This data are currently set up for ease of use with WRF and proper care should be taken when trying to use the data for other purposes. It is recommended that the GEBCO data be downloaded directly in this case.

Tags: a2e, atmosphere-to-electrons, bathymetry, c0, derived-data, eere, gebco-bathymetry-gridded-data-for-north-sea-baltic-sea, mesoscale-microscale-coupling, mmc, the-measurement-of-depth-of-water-in-oceans-seas-or-lakes, weto, wind, z01
Organization: Department of Energy