MITRAS v3.0, v3.1, v3.3: Simulations for assessing model extensions using an obstacle-resolving model

hdl:21.14106/8f091898788617745d208243b79983f577208784

Samsel, Karolin S. et al.

Dataset
Summary
[ Derived from parent entry - See data hierarchy tab ]

This dataset contains the results of nine simulations performed for the validation of the snow cover and precipitation scheme used in the microscale, obstacle-resolving model MITRAS v3.0 (Salim et al., 2013; Schluenzen et al., 2018), v3.1 (Ferner et al. 2023), and v3.3 (Samsel et al. 2025, in review). The model domain extends 240 m x 210 m horizontally and includes orography, slanted roofs, obstacle corners and different surface cover classes. The simulations were performed using different model versions, initial temperatures, precipitation and processing modes. The simulations cover 62 minutes model time, starting at 7:30 am model time, with a temporal resolution of 5 seconds or 5 minutes. This dataset contains a selection of output variables, control variables are not included.

The file names of the data sets are composed as follows.

{temperature}_{intensity}_{model version}_{comment}_{case ID}.nc

There are 3 intensities for temperature: low, medium, high
Associated values are:
T_low = 272 K, T_medium = 280 K, T_high = 288 K
Three versions are considered: v3p0 = MITRAS v3.0 (initial version), v3p1 = MITRAS v3.1 (inclusion of warm rain scheme), v3p3 = MITRAS v3.3 (inclusion of winter parameterisation scheme)
Special cases are 'noparallel', where the simulation was performed with the parallelisation mode switched off, and 'noprecip', where no precipitation is initialised.

Example:
T_high_v3p1_Hwr.nc
Project
WINTER_HAMBURG (Investigating climate change related impacts on the urban winter climate of Hamburg)
Spatial Coverage
Longitude 10. Latitude 53.55 Altitude: 0 level to 49 level
Temporal Coverage
2000-01-21 to 2000-01-21 (Local Solar Time in arbitrary year)
Use constraints
Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
Data Catalog
World Data Center for Climate
Access constraints
registered users
Size
1.40 GiB (1503864969 Byte)
Format
NetCDF
Status
completely archived
Creation Date
Future Review Date
2035-04-17
Download Permission
Please login to check permission and download options
Preview data headers
Cite as
[ Derived from parent entry - See data hierarchy tab ]
Samsel, Karolin S.; Boettcher, Marita; Grawe, David; Schlünzen, K. Heinke; Sieck, Kevin (2025). Simulations for assessing model extensions using the obstacle-resolving model MITRAS. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/WINTER_HAM_MitrasModEx

BibTeX RIS
VariableUnit
air_density
CF
kg m-3
air_pressure
CF
Pa
air_temperature
CF
degC
area_fraction
CF
1
height
CF
m
horizontal_exchange_coefficient_for_scalar_quantities
m2 s-1
lwe_thickness_of_surface_snow_amount
CF
m
relative_humidity
CF
1
specific_humidity
CF
kg kg-1
sum_hourly_rainfall_amount_at_building_surface_roofs
mm
sum_hourly_rainfall_at_surface
mm
sum_hourly_snowfall_amount_at_building_surface_roofs
mm
sum_hourly_snowfall_amount_at_surface
mm
surface_albedo
CF
1
surface_altitude
CF
m
surface_net_downward_longwave_flux
CF
W m-2
surface_net_downward_shortwave_flux
CF
W m-2
surface_roughness_length
CF
m
surface_snow_density
CF
kg m-3
terminal_velocity
m s-1
terminal_velocity_snow
m s-1
total_cloud_water_content
kg kg-1
total_rain_water_content
kg kg-1
total_snow_water_content
kg kg-1
upward_air_velocity
CF
m s-1
vertical_exchange_coefficient_for_scalar_quantities
m2 s-1
x_wind
CF
m s-1
y_wind
CF
m s-1

Parent

Simulations for assessing model extensions using the obstacle-resolving model MITRAS
Details

Parent project(s)

Investigating climate change related impacts on the urban winter climate of Hamburg

[Entry acronym: WINTER_HAM_MitrasModEx_ds] [Entry id: 5285587]