Date (Revision)

2026-10-01

Citation identifier

RMI-be / crow

Status

On going

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Royal Meteorological Institute of Belgium		info@meteo.be	Point of contact
Royal Meteorological Institute of Belgium		info@meteo.be	Owner

Maintenance and update frequency

Continual

User defined maintenance frequency

P0Y0M1DT0H0M0S

GEMET - INSPIRE themes, version 1.0

• Atmospheric conditions

Keywords

• federal government

• weather radar

• observation

• bird migration

• radar ornithology

• altitude profile

Spatial scope

• National

Access constraints

Other restrictions

Other constraints

No limitations on public access

Use constraints

Other restrictions

Other constraints

Creative Commons Attribution 4.0 International (CC BY 4.0) This is a human-readable summary of (and not a substitute for) the license. You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Classification

Unclassified

Spatial representation type

Vector

Distance

5000  m

Language

English

Topic category

• Climatology, meteorology, atmosphere

Begin date

2019-10-16T00:00:00

Unique resource identifier

EPSG:4258

Distribution format

Name	Version
txt	1

Hierarchy level

Dataset

Other

dataset

Statement

Bird density profiles are generated for every individual radar volume scan, and hence inherit the time resolution from the originating radar scan cycle. All radars used in this data repository operate in a five minute scan cycle.

The produced output file is a plain text file, and contains a concatenation of subsequent vertical profile outputs (vpts = vertical profile time series). It contains the following columns:

- date: Date (UTC)

- time: Time (UTC)

- HGHT: Height bin (lower bound) in m above ground level.

- u: Speed component west to east in m/s.

- v: Speed component north to south in m/s.

- w: Vertical speed (unreliable!) in m/s.

- ff: Horizontal speed in m/s.

- dd: Direction in degrees clockwise from north.

- sd_vvp: VVP radial velocity standard deviation in m/s.

- gap: Angular data gap detected in T/F.

- dbz: Animal reflectivity factor in dBZ.

- eta: Animal reflectivity in cm2/km3.

- dens: Animal density in animals/km3.

- DBZH: Total reflectivity factor (bio + meteo scattering) in dBZ.

- n: Number of data points used for the ground speed estimates (quantities u, v, w, ff, dd).

- n_all: Number of data points used for the radial velocity standard deviation estimate (quantity sd_vvp).

- n_dbz: Number of data points used for reflectivity-based estimates (quantities dbz, eta, dens).

- n_dbz_all: Number of data points used for the total reflectivity estimate (quantity DBZH).

The bird density profiles are provided as is, without any manual or automatic quality control.

Metadata

File identifier

RMI_DATASET_CROW XML

Metadata language

English

Hierarchy level

Dataset

Date stamp

2026-10-01

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Royal Meteorological Institute of Belgium		info@meteo.be	Point of contact

Other language

Language	Character encoding
French	UTF8
Dutch; Flemish	UTF8
German	UTF8