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Coordinate systems

Terms:
Geographic coordinate systems:

	Current Delft3D/SOBEK	CF Compliant	notes
Datum (shape of the earth)	WGS_1984	WGS_1984	The geoid is not explicitly defined in the CF convention. There was some discussion on this.
Projection/Geographic Coordinate System	Delft3D Spherical:WGS84 Cartesian: Unknown SOBEK: Amersfoort new The region is only valid in the bounding box of the Netherlands but this restriction is not used.	Projection by grid mapping. Projection information is also stored. Data is alwasy provided in WGS84

In Delft3D/SOBEK there are two methods to store coordinates:

Cartesian
Spherical
Actually this does not say anything about the coordinates itself but it defines the distance function between points.

Questions:
Is it correct to assume that Spherical is always based on a WGS84 datum.

Naming convention

Locations (Staggering)

Grid/network

Aggregation methods

Required information per file format:

References to write and read routines.
References to example files. (in quickplot tests)
For each file we need information of how this file will be made CF compliant.

GRID

Delft3D-FLOW - COM

file:///d:/checkouts/matlab/Delft3D-PAR - COM and PLO
file:///d:/checkouts/matlab/Delft3D-FLOW - COM - z-layer - 125

Delft3D-FLOW - TRID

file:///d:/checkouts/matlab/Delft3D-FLOW - TRID - s33

Delft3D-FLOW - TRIH

Delft3D-FLOW - TRIM

Delft3D-PAR - HIS - Binary

file:///d:/checkouts/matlab/Delft3D-PAR - HIS - Nefis - par2
file:///d:/checkouts/matlab/Delft3D-PAR - HIS - Nefis - parn

Delft3D-PAR - HIS - Nefis

file:///d:/checkouts/matlab/Delft3D-PAR - MAPasHIS - Binary - par2

Delft3D-PAR - MAP - Binary

file:///d:/checkouts/matlab/Delft3D-PAR - MAP - Binary - par2
file:///d:/checkouts/matlab/Delft3D-PAR - MAP - Binary - parn

Delft3D-PAR - MAP - Nefis

file:///d:/checkouts/matlab/Delft3D-PAR - MAP - Nefis - par2
file:///d:/checkouts/matlab/Delft3D-PAR - MAP - Nefis - parn

Delft3D-PAR - PLOT - Binary

file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Binary
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Binary - bed layer
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Binary - par2
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Binary - parn

Delft3D-PAR - PLOT - Nefis

file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Nefis
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Nefis - bed layer
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Nefis - par2
file:///d:/checkouts/matlab/Delft3D-PAR - PLOT - Nefis - parn

Delft3D-PAR - PSF - Binary

file:///d:/checkouts/matlab/Delft3D-PAR - PSF - Binary

Delft3D-PAR - PSF - Nefis

file:///d:/checkouts/matlab/Delft3D-PAR - PSF - Nefis

Delft3D-PAR - TRK

file:///d:/checkouts/matlab/Delft3D-PAR - TRK

Delft3D-WAQ - BAL

file:///d:/checkouts/matlab/Delft3D-WAQ - BAL - Binary - Tenryuu

Delft3D-WAQ - HIS - Binary

Delft3D-WAQ - HIS - Nefis

file:///d:/checkouts/matlab/Delft3D-WAQ - HIS - Nefis - Limiting Factors
file:///d:/checkouts/matlab/Delft3D-WAQ - HIS - Nefis - Tenryuu
file:///d:/checkouts/matlab/Delft3D-WAQ - HIS - Nefis - test013

Delft3D-WAQ - LGACCO

file:///d:/checkouts/matlab/Delft3D-WAQ - LGACCO - gw1

Delft3D-WAQ - MAP - Binary

file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary
file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary - Hong_Li
file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary - no T0
file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary - Pearl
file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary - Waddenzee
file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Binary - z-layer - c02

Delft3D-WAQ - MAP - Nefis

file:///d:/checkouts/matlab/Delft3D-WAQ - MAP - Nefis - Tenryuu

Delft3D-WAVE - WAVM

file:///d:/checkouts/matlab/Delft3D-WAVE - WAVM - cst - multiple times
file:///d:/checkouts/matlab/Delft3D-WAVE - WAVM - cvn
file:///d:/checkouts/matlab/Delft3D-WAVE - WAVM - st2-01 - Giles

These older Delft3D-WAVE HWGXY files are almost identical to WAVM files with M and N index directions switched.
file:///d:/checkouts/matlab/Delft3D-WAVE - HWGXY - b64
file:///d:/checkouts/matlab/Delft3D-WAVE - HWGXY - du9 - Duck
file:///d:/checkouts/matlab/Delft3D-WAVE - HWGXY - siu
file:///d:/checkouts/matlab/Delft3D-WAVE - HWGXY - tes

Delft3D-WAVE - COM

Pharos - directional spreading

file:///d:/checkouts/matlab/Pharos - directional spreading - 1hr
file:///d:/checkouts/matlab/Pharos - directional spreading - 3hr

Pharos - seiches with locations

file:///d:/checkouts/matlab/Pharos - seiches with locations - I
file:///d:/checkouts/matlab/Pharos - seiches with locations - II

Pharos - spectral

file:///d:/checkouts/matlab/Pharos - spectral

Pharos - either one of three types above (need to check)

file:///d:/checkouts/matlab/Pharos - breaking
file:///d:/checkouts/matlab/Pharos - current
file:///d:/checkouts/matlab/Pharos - Dunkirk
file:///d:/checkouts/matlab/Pharos - h3288
file:///d:/checkouts/matlab/Pharos - long crested
file:///d:/checkouts/matlab/Pharos - seiching
file:///d:/checkouts/matlab/Pharos - Tm01

SIMONA - SDS

file:///d:/checkouts/matlab/SIMONA - SDS Waqad - 1
file:///d:/checkouts/matlab/SIMONA - SDS Waqad - 2
file:///d:/checkouts/matlab/SIMONA - SDS Waqad - 3
file:///d:/checkouts/matlab/SIMONA - SDS Waqbhd
file:///d:/checkouts/matlab/SIMONA - SDS Waqua
file:///d:/checkouts/matlab/SIMONA - SDS Waqua - Lent
file:///d:/checkouts/matlab/SIMONA - SDS-Waqua - Vortices

SOBEK-RE

file:///d:/checkouts/matlab/SOBEK-River - Maas
This test consists of multiple RE files. The deftop files are a previous version of the SOBEK river schematisation. The file specification has changed. Paul vd Berg has updated the sobcnv to convert old files to new files.

The following is a part of the file DEFTOP.1. I could not find a reference in the SOBEK documentation (chm help file). The first column seems to be an object. In this file it's either NODE or BRCH (branch?). The following columns seem to be paired. The line ends with the object name in lowercase.
So one line consists of:
Object Parameter Value Parameter Value Parameter Value Parameter Value object
The parameters

id seems to be a non unique id, '001' is used for both a branch and a node.
nm might be the name, probably limited to 9 characters for some historical reason.
px looks like a cartesian coordinate for x
py looks like a cartesian coordinate for y
bn is probably a reference to a node (begin node?)
en is probably a reference to a node (end node)

al might be a reference to the length of the branch(in Cartesian space in m?)

...maas/data/deftop.1

NODE id '001' nm 'EysdenMSW' px 175810.0 py 307627.0 node
NODE id '002' nm 'StPietMSW' px 176868.0 py 315464.0 node
NODE id '003' nm 'km__14_84' px 176925.0 py 319425.0 node
NODE id '004' nm 'BorghdMSW' px 176377.0 py 320325.0 node
BRCH id '001' nm 'Kalkmas1' bn '001' en '002' al 8243 brch
BRCH id '002' nm 'Kalkmas2' bn '002' en '003' al 4039 brch

file:///d:/checkouts/matlab/SOBEK-River - Maas2
file:///d:/checkouts/matlab/SOBEK-River - Simple
file:///d:/checkouts/matlab/SOBEK-River - Wheatstone

SOBEK-Rural/Urban

file:///d:/checkouts/matlab/SOBEK-Rural - GWV
file:///d:/checkouts/matlab/SOBEK-Rural - netwerk6.6

Skylla

file:///d:/checkouts/matlab/Skylla

TRITON - 1D

file:///d:/checkouts/matlab/TRITON - 1D

TRITON - 2D

file:///d:/checkouts/matlab/TRITON - 2D
file:///d:/checkouts/matlab/TRITON - 2D - autodetect

Unibest

file:///d:/checkouts/matlab/Unibest Nieuw
file:///d:/checkouts/matlab/Unibest Nieuw - gwk
file:///d:/checkouts/matlab/Unibest Oud

Tekal - annotations

file:///d:/checkouts/matlab/Tekal - Annotations

Tekal - time series

file:///d:/checkouts/matlab/Tekal - Date - Time
file:///d:/checkouts/matlab/Tekal - Date and Time
file:///d:/checkouts/matlab/Tekal - datetime - EOF marker
file:///d:/checkouts/matlab/Tekal - yymmdd - hhmmss

Tekal - landboundary

file:///d:/checkouts/matlab/Tekal - LDB - 999.999
file:///d:/checkouts/matlab/Tekal - LDB - big combine
file:///d:/checkouts/matlab/Tekal - LDB - closed polygons
file:///d:/checkouts/matlab/Tekal - LDB - combine

Tekal - maps/vectors

file:///d:/checkouts/matlab/Tekal - vectors

Other quickplot test files

These files are not part of our conversion tests. Either because they are external generated files or because I couldn't classify the files or because it's a legacy format.

file:///d:/checkouts/matlab/FLS - BIN - History
file:///d:/checkouts/matlab/FLS - CRS - History
file:///d:/checkouts/matlab/FLS - HIS - History

file:///d:/checkouts/matlab/JPost - arjen

These meteo files used in earlier FEWS systems are NEFIS with similar internal structure as the Delft3D-COM file as written by Delft3D-FLOW.

file:///d:/checkouts/matlab/Meteo DWD GME
file:///d:/checkouts/matlab/Meteo DWD LM
file:///d:/checkouts/matlab/Meteo ECMWF Forecast
file:///d:/checkouts/matlab/Meteo ECMWF Old Ensemble

This is a Delft3D-FLOW COM file like file that was written by a special version of POM
file:///d:/checkouts/matlab/POM - COM

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