Attribute Tables
Land Use Layer
Note
The order may vary slightly depending on which layers are downloaded within the area of interest
| OBJECT_ID | FID | FID_ZBG | Shape_Length | Shape_Area | source | LandUse_code | ... |
|---|---|---|---|---|---|---|---|
| 474174 | 11390 | 9118867599130624 | 25.91594895 | 41.976849999744445 | ZABAGED_POLOHOPIS:Budova_jednotlivá_nebo_blok_budov__plocha_ | 44100 | ... |
| NULL | NULL | NULL | NULL | NULL | LPIS_layer | 20000 | ... |
| NULL | 9914363 | 474712196 | 738.75743744 | NULL | ZABAGED_POLOHOPIS:Silnice__dálnice | 44100 | ... |
- OBJECT_ID – provider identifier
- FID – provider identifier
- FID_ZBG – unique object identifier in ZABAGED®
- Shape_Length – perimeter of the original feature provided by the WFS service
- Shape_Area – area of the feature provided by the WFS service. After retrieving the layer, this does not reflect the real value and is recalculated during the direct runoff volume computation process.
- source – Name of the layer provided by the WFS service (ZABAGED); for LPIS DPB data, only LPIS_layer is shown
- LandUse_code – Code defining the land use type. Assigned based on configuration files (1, 2). It is also used in the CN values table for their assignment.
- ... – Additional attributes in the table are taken from downloaded ZABAGED and LPIS layers
Soil Hydrologic Group Layer (HSG)
| ID | HSG | fid | layer | path |
|---|---|---|---|---|
| 1 | 0 | NULL | output | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... |
| NULL | 3 | 1 | output | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... |
| NULL | 2 | 2 | output | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... |
Intersected Land Use and HSG Layer
Note
This layer contains the same attributes as both previous layers, since it is derived from them. Key attributes again are HSG and LandUse_code. Only the following differ.
| fid | fid_2 | layer | path | layer_2 | path_2 |
|---|---|---|---|---|---|
| 32406 | NULL | clean_clipped | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... | output | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... |
| NULL | 1 | clean_clipped | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... | output | MultiPolygon?crs=EPSG:5514field=ID:integer(0,0)... |
- fid – provider identifier from ZABAGED/LPIS
- fid_2 – feature identifier assigned by the WPS service providing the soil hydrologic group layer
- layer – text clean_clipped assigned upon successful clipping of layers
- path – land use layer metadata
- layer_2 – text output assigned upon successful polygonization of the soil hydrologic group layer. Without this attribute, the feature’s geometry may be invalid.
- path_2 – soil hydrologic group layer metadata
Curve Number (CN) Layer
| FID | Shape_Length | Shape_Area | source | LandUse_code | OBJECTID | HSG | CN2 | CN3 |
|---|---|---|---|---|---|---|---|---|
| 32406 | 2701.37014425 | 341856.95321526 | ZABAGED_POLOHOPIS:Vodní_plocha | 77200 | NULL | 0 | 99 | 99.56274595540009 |
| NULL | 110.92570167 | 521.32182349 | ZABAGED_POLOHOPIS:Lesní_půda_se_stromy_kategorizovaná__plocha_ | 33300 | 2040918 | 2 | 50 | 69.6969696969697 |
- FID – provider identifier from ZABAGED/LPIS
- Shape_Length – perimeter of the original feature provided by the WFS service
- Shape_Area – area of the feature provided by the WFS service. After retrieving the layer, this does not reflect the real value and is recalculated during the direct runoff volume computation process.
- source – Name of the layer provided by the WFS service (ZABAGED); for LPIS DPB data, only LPIS_layer is shown
- LandUse_code – Code defining the land use type. Assigned based on configuration files (1, 2). It is also used in the CN values table for their assignment.
- OBJECTID – provider identifier from ZABAGED/LPIS
- HSG – soil hydrologic group value (0 = water body, 1 = A, 2 = B, 3 = C, 4 = D)
- CN2 – CN value assigned from the table representing average saturation conditions
-
CN3 – CN value calculated from CN2 for wet saturation conditions using:
CN3 = (23 × CN2) / (10 + 0.13 × CN2)
Runoff Volume Layer
Note
All types of direct runoff volume layers contain the same attributes as the CN layer from which they derive.
Computed from recurrence intervals at rain.fsv.cvut.cz
Note
The example shows results only for 2- and 5-year return periods (N2, N5). For more periods, the attributes remain the same; only the suffixes indicating the return period (N2, N5, N10, ...) will differ.
| V_N2_m3 | CN2_N2_runoff_height_mm | CN2_N2_runoff_volume_m3 | CN3_N2_runoff_height_mm | CN3_N2_runoff_volume_m3 | V_N10_m3 | CN2_N10_runoff_height_mm | CN2_N10_runoff_volume_m3 | CN3_N10_runoff_height_mm | CN3_N10_runoff_volume_m3 |
|---|---|---|---|---|---|---|---|---|---|
| 2537.829236336099 | 24.743203117150543 | 2411.544190664504 | 26.305069501921043 | 2563.768209072887 | 4279.45426857832 | 42.4599316851946 | 4138.267834873376 | 44.08827672231118 | 4296.971055150222 |
- V_N2_m3 – Weighted direct runoff volume for a two-year return period (weighted by hyetograph shape probabilities and abnormal saturation likelihood)
- CN2_N2_runoff_height_mm – total precipitation depth derived from the WPS service’s direct runoff height for 2-year return period and CN2
- CN2_N2_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN2_N2_runoff_height_mm
- CN3_N2_runoff_height_mm – total precipitation depth derived from the WPS service’s direct runoff height for 2-year return period and CN3
-
CN3_N2_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN3_N2_runoff_height_mm
-
V_N10_m3 – Weighted direct runoff volume for a ten-year return period (weighted by hyetograph shape probabilities and abnormal saturation likelihood)
- CN2_N10_runoff_height_mm – total precipitation depth derived from the WPS service’s direct runoff height for 10-year return period and CN2 (in mm)
- CN2_N10_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN2_N10_runoff_height_mm
- CN3_N10_runoff_height_mm – total precipitation depth derived from the WPS service’s direct runoff height for 10-year return period and CN3 (in mm)
- CN3_N10_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN3_N10_runoff_height_mm
Computed from a single user-provided runoff depth
| CN2_runoff_height_mm | CN2_runoff_volume_m3 | CN3_runoff_height_mm | CN3_runoff_volume_m3 |
|---|---|---|---|
| 13.45340226457616 | 42.854151425353045 | 37.43211159302552 | 119.23536863251337 |
- CN2_runoff_height_mm – total precipitation depth calculated from the user-provided runoff height and CN2
- CN2_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN2_runoff_height_mm
- CN3_runoff_height_mm – total precipitation depth calculated from the user-provided runoff height and CN3
- CN3_runoff_volume_m3 – runoff volume calculated from the feature’s area and the CN3_runoff_height_mm
Computed from multiple user-provided runoff depths
Note
The table example is for two input values. With more inputs, only the suffixes will change according to the sequence number:
CN2_1_runoff_height_mm, CN2_2_runoff_height_mm, CN2_3_runoff_height_mm, …
Attributes contain the same values as in the previous case, just for multiple inputs.
| CN2_1_runoff_height_mm | CN2_1_runoff_volume_m3 | CN3_1_runoff_height_mm | CN3_1_runoff_volume_m3 | CN2_2_runoff_height_mm | CN2_2_runoff_volume_m3 | CN3_2_runoff_height_mm | CN3_2_runoff_volume_m3 |
|---|---|---|---|---|---|---|---|
| 13.45340226457616 | 42.854151425353045 | 37.43211159302552 | 119.23536863251337 | 77.00143626535197 | 7504.782845589686 | 78.67677931229387 | 7668.066627931615 |