NetCDF Synoptische Daten im Dreiecksgitter

Kurze Beschreibung

Synoptische Daten für alle staggered data Positionen eines aus Dreiecken aufgebauten Gitters.

Weitere Beschreibungen

• NetCDF Dreiecksgitter: Koordinaten, Topologie und Koordinatentransformation;
• NetCDF Zeitkoordinate: Koordinatenvariable time;
• NetCDF Vertikalkoordinate: Vertikalkoordinate depth oder height:
  1. node_depth_3d : Vertikalkoordinate für tiefenstrukturierte Daten an Knoten;
  2. edge_depth_3d : Vertikalkoordinate für tiefenstrukturierte Daten auf Kanten;
  3. poly_depth_3d : Vertikalkoordinate für tiefenstrukturierte Daten in Polygonen.

Bemerkung: Es werden verschiedene Vertikalkoordinaten benötigt, da in jedem Attribut formula_terms verschiedene Variablen für Wasserstand und Boden benutzt werden.

Dimensionen

Soweit nicht schon oben festgelegt, kommen noch folgende Dimensionen hinzu:

dimensions:

nMesh2_cell = total number of computational cells above polygons

nMesh2_face = total number of computational faces above edges

nMesh2_vedge = total number of computational data above nodes

Informationen für das HN-Verfahren

Kennzeichnung offener und geschlossener Kanten

integer Mesh2_edge_type(nMesh2_edge) ;

Mesh2_edge_type:standard_name = "???" ; \\ yet to be defined

Mesh2_edge_type:long_name = "type of 2D mesh edges, closed or open" ;

Mesh2_edge_type:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_edge_type:_FillValue = fillvalue ;

Mesh2_edge_type:valid_range = 0, 1 ;

Mesh2_edge_type:valid_values = 0, 1 ;

Mesh2_edge_type:flag_meanings = "closed_edge, open_edge"

Mesh2_edge_type:grid_mapping = "crs"

Kennzeichnung von Positionen für die Randwertsteuerung

Text fehlt noch.

Datenkompression

Auf Grund der Verwendung von z-Schichten sind, z. B. über jedem Polygon, in Abhängigkeit von der Wassertiefe unterschiedlich viele (aktive) Berechnungszellen vorhanden. Zur Reduktion der Größe der Ergebnisdatensätze werden verschiedene Dimensionen in einer komprimierten Dimension zusammengefasst. Dauerhaft fehlende Daten werden daher erst gar nicht in der Datei abgespeichert. Dies reduziert bei drei-dimensionalen Simulationen mit z-Schichten den Speicheraufwand typischer Weise um 60 bis 80 Prozent.

Komprimierte Daten an Knoten

integer nMesh2_vedge(nMesh2_vedge) ;

nMesh2_vedge:compress = "node_depth_3d nMesh2_node"

Komprimierte Daten auf Kanten

integer nMesh2_face(nMesh2_face) ;

nMesh2_face:compress = "edge_depth_3d nMesh2_edge"

Komprimierte Daten in Polygonen

integer nMesh2_cell(nMesh2_cell) ;

nMesh2_cell:compress = "poly_depth_3d nMesh2_poly"

Gewichte

Gewichte werden insbesondere im Postprocessing benötigt, um abgeleitete Daten korrekt berechnen zu können, falls die hierfür relevanten Gewichtsfaktoren, z. B. Flächen oder Volumina, nicht in einfacher Weise aus den Koordinaten abgeleitet werden können. Die Verwendung von Gewichten bringt daher eine große Sicherheit in die späteren Weiterverarbeitung der Daten. Beispiele für abgeleitete Daten sind Tiefenmittelwerte, Durchflüsse, räumliche Mittelwerte, Massensummen usw.

Längen

Maximale Kantenlänge

double Mesh2_edge_max_length_2d(nMesh2_edge) ; \\ normally not time dependent

Mesh2_edge_max_length_2d:standard_name = "???" ; \\ eventually not required

Mesh2_edge_max_length_2d:long_name = "total length above 2D mesh edges, vertically integrated" ;

Mesh2_edge_max_length_2d:units = "m" ;

Mesh2_edge_max_length_2d:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_edge_max_length_2d:_FillValue = fillvalue ;

Mesh2_edge_max_length_2d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_max_length_2d:grid_mapping = "crs"

Hinweis: bei klassischen Gitternetzen ist die maximale Länge einer durchströmten Kante im Berechnungsgitter und im geometrischen Gitter identisch. In neueren Verfahren, wie z. B. UnTRIM², kann die durchströmte Kante während der Berechnung allerdings kleiner als die maximale (geometrische) Länge sein.

Nasse Kantenlänge, summiert über alle Schichten

double Mesh2_edge_wet_length_2d(time,nMesh2_edge) ;

Mesh2_edge_wet_length_2d:standard_name = "???" ; \\ eventually not required

Mesh2_edge_wet_length_2d:long_name = "wet length above 2D mesh edges, vertically integrated" ;

Mesh2_edge_wet_length_2d:units = "m" ;

Mesh2_edge_wet_length_2d:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_edge_wet_length_2d:_FillValue = fillvalue ;

Mesh2_edge_wet_length_2d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_wet_length_2d:grid_mapping = "crs"

Hinweis: bei klassischen Gitternetzen ist die nasse, also von Wasser bedeckte Kantenlänge entweder Null oder gleich der maximalen Kantenlänge. In neueren Verfahren, wie z. B. UnTRIM², kann die nasse Kantenlänge hingegen kontinuierlich zwischen Null und der maximalen Kantenlänge je nach dem Grad der Wasserbedeckung variieren.

Durchflusshöhe an Knoten, summiert über alle Schichten

double Mesh2_node_water_depth_2d(time,nMesh2_node) ;

Mesh2_node_water_depth_2d:standard_name = "sea_floor_depth_below_sea_surface" ; \\ eventually not required

Mesh2_node_water_depth_2d:long_name = "water depth above 2D mesh nodes, vertically integrated" ;

Mesh2_node_water_depth_2d:units = "m" ;

Mesh2_node_water_depth_2d:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_water_depth_2d:_FillValue = fillvalue ;

Mesh2_node_water_depth_2d:valid_range = valid minimum, valid maximum ;

Mesh2_node_water_depth_2d:grid_mapping = "crs"

Hinweis: entspricht der Wassertiefe an den Knoten.

Duchflusshöhe an Knoten, differenziert nach Schichten

double Mesh2_node_water_depth_3d(time,nMesh2_vedge) ; \\ compression used

Mesh2_node_water_depth_3d:standard_name = "???" ; \\ eventually not required

Mesh2_node_water_depth_3d:long_name = "water depth above 2D mesh nodes, vertically structured" ;

Mesh2_node_water_depth_3d:units = "m" ;

Mesh2_node_water_depth_3d:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_water_depth_3d:_FillValue = fillvalue ;

Mesh2_node_water_depth_3d:valid_range = valid minimum, valid maximum ;

Mesh2_node_water_depth_3d:grid_mapping = "crs" ;

Hinweis: die Wassertiefe in den einzelnen Schichten ist bei Verwendung von z-Schichten sowohl vom Wasserstand, der Lage der Gewässersohle, und zusätzlich noch von der Position der z-Schichten abhängig. Diese Daten sind für einen Postprozessor nur unter Kenntnis der in dem erzeugenden HN-Verfahren benutzten Algorithmen exakt rekonstruierbar.

Flächen

Maximale Polygonfläche

double Mesh2_poly_max_area_2d(nMesh2_poly) ; \\ normally not time dependent

Mesh2_poly_max_area_2d:standard_name = "???" ; \\ eventually not required

Mesh2_poly_max_area_2d:long_name = "total area above 2D mesh polygons, vertically integrated" ;

Mesh2_poly_max_area_2d:units = "m2" ;

Mesh2_poly_max_area_2d:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_max_area_2d:_FillValue = fillvalue ;

Mesh2_poly_max_area_2d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_max_area_2d:grid_mapping = "crs"

Wasserbedeckte Polygonfläche, summiert über alle Schichten

double Mesh2_poly_wet_area(time,nMesh2_poly) ;

Mesh2_poly_wet_area_2d:standard_name = "???" ; \\ eventually not required

Mesh2_poly_wet_area_2d:long_name = "wet area above 2D mesh polygons, vertically integrated" ;

Mesh2_poly_wet_area_2d:units = "m2" ;

Mesh2_poly_wet_area_2d:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_wet_area_2d:_FillValue = fillvalue ;

Mesh2_poly_wet_area_2d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_wet_area_2d:grid_mapping = "crs"

Duchflussfläche über Kanten, summiert über alle Schichten

double Mesh2_face_flow_area_2d(time,nMesh2_edge) ;

Mesh2_face_flow_area_2d:standard_name = "???" ; \\ eventually not required

Mesh2_face_flow_area_2d:long_name = "flow area above 2D mesh edges, vertically integrated" ;

Mesh2_face_flow_area_2d:units = "m2" ;

Mesh2_face_flow_area_2d:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_face_flow_area_2d:_FillValue = fillvalue ;

Mesh2_face_flow_area_2d:valid_range = valid minimum, valid maximum ;

Mesh2_face_flow_area_2d:grid_mapping = "crs"

Durchflussfläche über Kanten, differenziert nach Schichten

double Mesh2_face_flow_area_3d(time,nMesh2_face) ; \\ compressed dimension used

Mesh2_face_flow_area_3d:standard_name = "???" ; \\ eventually not required

Mesh2_face_flow_area_3d:long_name = "flow area above 2D mesh edges, vertically structured" ;

Mesh2_face_flow_area_3d:units = "m2" ;

Mesh2_face_flow_area_3d:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_face_flow_area_3d:_FillValue = fillvalue ;

Mesh2_face_flow_area_3d:valid_range = valid minimum, valid maximum ;

Mesh2_face_flow_area_3d:grid_mapping = "crs"

Volumina

Wasservolumen über Polygonen, vertikal integriert

double Mesh2_poly_water_volume_2d(time,nMesh2_poly) ;

Mesh2_poly_water_volume_2d:standard_name = "???" ; \\ eventually not required

Mesh2_poly_water_volume_2d:long_name = "water volume above 2D mesh polygons, vertically integrated" ;

Mesh2_poly_water_volume_2d:units = "m3" ;

Mesh2_poly_water_volume_2d:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_water_volume_2d:_FillValue = fillvalue ;

Mesh2_poly_water_volume_2d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_water_volume_2d:grid_mapping = "crs"

Wasservolumen über Polygonen, vertikal strukturiert

double Mesh2_poly_water_volume_3d(time,nMesh2_cell) ; \\ compressed dimension used

Mesh2_poly_water_volume_3d:standard_name = "???" ; \\ eventually not required

Mesh2_poly_water_volume_3d:long_name = "water volume above 2D mesh polygons, vertically structured" ;

Mesh2_poly_water_volume_3d:units = "m3" ;

Mesh2_poly_water_volume_3d:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_water_volume_3d:_FillValue = fillvalue ;

Mesh2_poly_water_volume_3d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_water_volume_3d:grid_mapping = "crs"

Aktuelle (zeitvariable) Topografie

Es werden nur die Angaben für zeitvariable Topografie gemacht. Bei stationärer Topografie entfällt die Dimension time.

Knoten

double Mesh2_node_depth(time,nMesh2_node) ;

Mesh2_node_depth:standard_name = "sea_floor_depth_below_geoid" ;

Mesh2_node_depth:long_name = "sea floor depth at 2D mesh nodes" ;

Mesh2_node_depth:units = "m" ;

Mesh2_node_depth:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_depth:_FillValue = fillvalue ;

Mesh2_node_depth:valid_range = valid minimum, valid maximum ;

Mesh2_node_depth:cell_methods = "nMesh2_node: point" \\ depth is pointwise

Mesh2_node_depth:grid_mapping = "crs"

Kanten

double Mesh2_edge_depth(time,nMesh2_edge) ;

Mesh2_edge_depth:standard_name = "sea_floor_depth_below_geoid" ;

Mesh2_edge_depth:long_name = "sea floor depth for 2D mesh edges" ;

Mesh2_edge_depth:units = "m" ;

Mesh2_edge_depth:coordinates = "Mesh2_edge_lon Mesh2_edge_lat" ;

Mesh2_edge_depth:_FillValue = fillvalue ;

Mesh2_edge_depth:valid_range = valid minimum, valid maximum ;

Mesh2_edge_depth:cell_methods = "nMesh2_edge: mean" ; \\ depth is constant along edge

Mesh2_poly_depth:cell_measures = "length: Mesh2_poly_max_length_2d" ;

Mesh2_edge_depth:grid_mapping = "crs"

Polygone

double Mesh2_poly_depth(time,nMesh2_poly) ;

Mesh2_poly_depth:standard_name = "sea_floor_depth_below_geoid" ;

Mesh2_poly_depth:long_name = "sea floor depth for 2D mesh polygons" ;

Mesh2_poly_depth:units = "m" ;

Mesh2_poly_depth:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_poly_depth:_FillValue = fillvalue ;

Mesh2_poly_depth:valid_range = valid minimum, valid maximum ;

Mesh2_poly_depth:cell_methods = "nMesh2_poly: mean" ; \\ depth is constant within polygon

Mesh2_poly_depth:cell_measures = "area: Mesh2_poly_max_area_2d" ;

Mesh2_poly_depth:grid_mapping = "crs"

Maximal zulässige Tiefe

• Vollständig analog zu Aktuelle Tiefe vorgehen, jedoch ohne Dimension time.
• Vorschlag für die Namensgebung:
  1. Knoten: "Mesh2_node_max_depth(nMesh2_node)" ;
  2. Kanten: "Mesh2_edge_max_depth(nMesh2_edge)" ;
  3. Polygone: "Mesh2_poly_max_depth(nMesh2_poly)" .

Wasserstand

Typischer Weise liegt der Wasserstand entweder (punktweise) am Knoten oder konstant im Polygon vor.

Knoten

double Mesh2_node_water_level(time,nMesh2_node) ;

Mesh2_node_water_level:standard_name = "sea_surface_height_above_geoid" ;

Mesh2_node_water_level:long_name = "water level for 2D mesh nodes" ;

Mesh2_node_water_level:units = "m" ;

Mesh2_node_water_level:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_water_level:_FillValue = fillvalue ;

Mesh2_node_water_level:valid_range = valid minimum, valid maximum ;

Mesh2_node_water_level:cell_methods = "nMesh2_node: point" ; \\ pointwise data

Mesh2_node_water_level:grid_mapping = "crs" ;

Polygon

double Mesh2_poly_water_level(time,nMesh2_poly) ;

Mesh2_poly_water_level:standard_name = "sea_surface_height_above_geoid" ;

Mesh2_poly_water_level:long_name = "water level for 2D mesh polygons" ;

Mesh2_poly_water_level:units = "m" ;

Mesh2_poly_water_level:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_water_level:_FillValue = fillvalue ;

Mesh2_poly_water_level:valid_range = valid minimum, valid maximum ;

Mesh2_poly_water_level:cell_methods = "nMesh2_node: mean" \\ mean value within polygon

Mesh2_poly_water_level:cell_measures = "area: Mesh2_poly_wet_area_2d" ;

Mesh2_poly_water_level:grid_mapping = "crs" ;

Tiefengemittelter Salzgehalt

Typischer Weise liegt der Salzgehalt entweder (punktweise) über Knoten oder über Polygonen vor.

Knoten

double Mesh2_node_salinity_2d(time,nMesh2_node) ;

Mesh2_node_salinity_2d:standard_name = "sea_water_salinity" ;

Mesh2_node_salinity_2d:long_name = "salinity for 2D mesh nodes, depth averaged" ;

Mesh2_node_salinity_2d:units = "0.001" ;

Mesh2_node_salinity_2d:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_salinity_2d:_FillValue = fillvalue ;

Mesh2_node_salinity_2d:valid_range = valid minimum, valid maximum ;

Mesh2_node_salinity_2d:cell_methods = "nMesh2_node: mean" ;

Mesh2_node_salinity_2d:cell_measures = "length: Mesh2_node_water_depth_2d" \\ depth averaged

Mesh2_node_salinity_2d:grid_mapping = "crs" ;

Polygone

double Mesh2_poly_salinity_2d(time,nMesh2_poly) ;

Mesh2_poly_salinity_2d:standard_name = "sea_water_salinity" ;

Mesh2_poly_salinity_2d:long_name = "salinity for 2D mesh nodes, depth averaged" ;

Mesh2_poly_salinity_2d:units = "0.001" ;

Mesh2_poly_salinity_2d:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_poly_salinity_2d:_FillValue = fillvalue ;

Mesh2_poly_salinity_2d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_salinity_2d:cell_methods = "nMesh2_poly: mean" ;

Mesh2_poly_salinity_2d:cell_measures = "volume: Mesh2_poly_water_volume_2d" ; \\ volume averaged

Mesh2_poly_salinity_2d:grid_mapping = "crs" ;

Tiefenstrukturierter Salzgehalt

Typischer Weise liegt der Salzgehalt entweder (punktweise) über Knoten oder über Polygonen vor.

Knoten

double Mesh2_node_salinity_3d(time,nMesh2_vedge) ; \\ compressed dimension used

Mesh2_node_salinity_3d:standard_name = "sea_water_salinity" ;

Mesh2_node_salinity_3d:long_name = "salinity for 2D mesh nodes, vertically structured" ;

Mesh2_node_salinity_3d:units = "0.001" ;

Mesh2_node_salinity_3d:coordinates = "Mesh2_node_lon Mesh2_node_lat" ;

Mesh2_node_salinity_3d:_FillValue = fillvalue ;

Mesh2_node_salinity_3d:valid_range = valid minimum, valid maximum ;

Mesh2_node_salinity_3d:cell_methods = "nMesh2_vedge: mean" ;

Mesh2_node_salinity_3d:cell_measures = "length: Mesh2_node_water_depth_3d" \\ depth averaged

Mesh2_node_salinity_3d:grid_mapping = "crs" ;

Polygone

double Mesh2_poly_salinity_3d(time,nMesh2_cell) ;

Mesh2_poly_salinity_3d:standard_name = "sea_water_salinity" ;

Mesh2_poly_salinity_3d:long_name = "salinity for 2D mesh polygons, vertically structured" ;

Mesh2_poly_salinity_3d:units = "0.001" ;

Mesh2_poly_salinity_3d:coordinates = "Mesh2_poly_lon Mesh2_poly_lat" ;

Mesh2_poly_salinity_3d:_FillValue = fillvalue ;

Mesh2_poly_salinity_3d:valid_range = valid minimum, valid maximum ;

Mesh2_poly_salinity_3d:cell_methods = "nMesh2_cell: mean" ;

Mesh2_poly_salinity_3d:cell_measures = "volume: Mesh2_poly_water_volume_3d" ; \\ volume averaged

Mesh2_poly_salinity_3d:grid_mapping = "crs" ;

Tiefengemittelte Strömungsgeschwindigkeit

Knoten

double Mesh2_node_velocity_x_2d(time,nMesh2_node) ;

Mesh2_node_velocity_x_2d:standard_name = "sea_water_x_velocity" ; \\ or better eastward_sea_water_velocity

Mesh2_node_velocity_x_2d:long_name = "current velocity in x-direction for 2D mesh nodes, depth integrated" ;

Mesh2_node_velocity_x_2d:units = "m s-1" ;

Mesh2_node_velocity_x_2d:coordinates = "Mesh2_node_lon mesh2_node_lat" ;

Mesh2_node_velocity_x_2d:_FillValue = fillvalue ;

Mesh2_node_velocity_x_2d:valid_range = valid minimum, valid maximum ;

Mesh2_node_velocity_x_2d:cell_methods = "nMesh2_node: mean" ;

Mesh2_node_velocity_x_2d:cell_measures = "length: Mesh2_node_water_depth_2d" ;

Mesh2_node_velocity_x_2d:grid_mapping = "crs"

Bemerkung: y-Komponente sea_water_y_velocity (northward_sea_water_velocity) analog.

Kanten

double Mesh2_edge_velocity_x_2d(time,nMesh2_edge) ;

Mesh2_edge_velocity_x_2d:standard_name = "sea_water_x_velocity" ; \\ or better eastward_sea_water_velocity

Mesh2_edge_velocity_x_2d:long_name = "current velocity in x-direction for 2D mesh edges, depth integrated" ;

Mesh2_edge_velocity_x_2d:units = "m s-1" ;

Mesh2_edge_velocity_x_2d:coordinates = "Mesh2_edge_lon mesh2_edge_lat" ;

Mesh2_edge_velocity_x_2d:_FillValue = fillvalue ;

Mesh2_edge_velocity_x_2d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_velocity_x_2d:cell_methods = "nMesh2_edge: mean" ;

Mesh2_edge_velocity_x_2d:cell_measures = "length: Mesh2_edge_flow_area_2d" ;

Mesh2_edge_velocity_x_2d:grid_mapping = "crs"

Bemerkung: y-Komponente sea_water_y_velocity (northward_sea_water_velocity) analog.

double Mesh2_edge_velocity_n_2d(time,nMesh2_edge) ;

Mesh2_edge_velocity_n_2d:standard_name = "???" ;

Mesh2_edge_velocity_n_2d:long_name = "normal current velocity for 2D mesh edges, depth integrated" ;

Mesh2_edge_velocity_n_2d:units = "m s-1" ;

Mesh2_edge_velocity_n_2d:coordinates = "Mesh2_edge_lon mesh2_edge_lat" ;

Mesh2_edge_velocity_n_2d:_FillValue = fillvalue ;

Mesh2_edge_velocity_n_2d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_velocity_n_2d:cell_methods = "nMesh2_edge: mean" ;

Mesh2_edge_velocity_n_2d:cell_measures = "length: Mesh2_edge_flow_area_2d" ;

Mesh2_edge_velocity_n_2d:grid_mapping = "crs"

Tiefenstrukturierte Strömungsgeschwindigkeit

Knoten

double Mesh2_node_velocity_x_3d(time,nMesh2_vedge) ; \\ compressed dimension used

Mesh2_node_velocity_x_3d:standard_name = "sea_water_x_velocity" ; \\ or better eastward_sea_water_velocity

Mesh2_node_velocity_x_3d:long_name = "current velocity in x-direction for 2D mesh nodes, vertically structured" ;

Mesh2_node_velocity_x_3d:units = "m s-1" ;

Mesh2_node_velocity_x_3d:coordinates = "Mesh2_node_lon mesh2_node_lat" ;

Mesh2_node_velocity_x_3d:_FillValue = fillvalue ;

Mesh2_node_velocity_x_3d:valid_range = valid minimum, valid maximum ;

Mesh2_node_velocity_x_3d:cell_methods = "nMesh2_vedge: mean" ;

Mesh2_node_velocity_x_3d:cell_measures = "length: Mesh2_node_water_depth_3d" ;

Mesh2_node_velocity_x_3d:grid_mapping = "crs"

Bemerkung: y-Komponente sea_water_y_velocity (northward_sea_water_velocity) analog.

double Mesh2_node_velocity_z_3d(time,nMesh2_vedge) ; \\ compressed dimension used

Mesh2_node_velocity_z_3d:standard_name = "upward_sea_water_velocity" ;

Mesh2_node_velocity_z_3d:long_name = "current velocity in z-direction for 2D mesh nodes, vertically structured" ;

Mesh2_node_velocity_z_3d:units = "m s-1" ;

Mesh2_node_velocity_z_3d:coordinates = "Mesh2_node_lon mesh2_node_lat" ;

Mesh2_node_velocity_z_3d:_FillValue = fillvalue ;

Mesh2_node_velocity_z_3d:valid_range = valid minimum, valid maximum ;

Mesh2_node_velocity_z_3d:cell_methods = "nMesh2_vedge: mean" ;

Mesh2_node_velocity_z_3d:cell_measures = "length: Mesh2_node_water_depth_3d" ;

Mesh2_node_velocity_z_3d:grid_mapping = "crs"

Kanten

double Mesh2_edge_velocity_x_3d(time,nMesh2_face) ;

Mesh2_edge_velocity_x_3d:standard_name = "sea_water_x_velocity" ; \\ or better eastward_sea_water_velocity

Mesh2_edge_velocity_x_3d:long_name = "current velocity in x-direction for 2D mesh edges, verticalls structured" ;

Mesh2_edge_velocity_x_3d:units = "m s-1" ;

Mesh2_edge_velocity_x_3d:coordinates = "Mesh2_edge_lon mesh2_edge_lat" ;

Mesh2_edge_velocity_x_3d:_FillValue = fillvalue ;

Mesh2_edge_velocity_x_3d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_velocity_x_3d:cell_methods = "nMesh2_face: mean" ;

Mesh2_edge_velocity_x_3d:cell_measures = "length: Mesh2_edge_flow_area_3d" ;

Mesh2_edge_velocity_x_3d:grid_mapping = "crs"

Bemerkung: y-Komponente sea_water_y_velocity (northward_sea_water_velocity) analog.

double Mesh2_node_velocity_z_3d(time,nMesh2_face) ; \\ compressed dimension used

Mesh2_edge_velocity_z_3d:standard_name = "upward_sea_water_velocity" ;

Mesh2_edge_velocity_z_3d:long_name = "current velocity in z-direction for 2D mesh nodes, vertically structured" ;

Mesh2_edge_velocity_z_3d:units = "m s-1" ;

Mesh2_edge_velocity_z_3d:coordinates = "Mesh2_node_lon mesh2_node_lat" ;

Mesh2_edge_velocity_z_3d:_FillValue = fillvalue ;

Mesh2_edge_velocity_z_3d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_velocity_z_3d:cell_methods = "nMesh2_face: mean" ;

Mesh2_edge_velocity_z_3d:cell_measures = "length: Mesh2_node_water_depth_3d" ;

Mesh2_edge_velocity_z_3d:grid_mapping = "crs"

double Mesh2_edge_velocity_n_3d(time,nMesh2_face) ;

Mesh2_edge_velocity_n_3d:standard_name = "???" ;

Mesh2_edge_velocity_n_3d:long_name = "normal current velocity for 2D mesh edges, vertically structured" ;

Mesh2_edge_velocity_n_3d:units = "m s-1" ;

Mesh2_edge_velocity_n_3d:coordinates = "Mesh2_edge_lon mesh2_edge_lat" ;

Mesh2_edge_velocity_n_3d:_FillValue = fillvalue ;

Mesh2_edge_velocity_n_3d:valid_range = valid minimum, valid maximum ;

Mesh2_edge_velocity_n_3d:cell_methods = "nMesh2_face: mean" ;

Mesh2_edge_velocity_n_3d:cell_measures = "length: Mesh2_edge_flow_area_3d" ;

Mesh2_edge_velocity_n_3d:grid_mapping = "crs"

Anmerkungen, Fragen

• Datei ist vollständig CF-konform - keine Erweiterungen erforderlich!

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