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License: Creative Commons Zero v1.0 Universal
Bird migration case study from the Netherlands and Belgium
License: Creative Commons Zero v1.0 Universal
The reason for this is that data package is a subdirectory of this repository. Existing viewers expect data package = repository. I recorded this issue at:
Use IDs from World Meteorological Organization (WMO), which can be found here: http://www.eumetnet.eu/radar-network
radar_id
fieldThe hackathon participants discovered that ground_speed
is not always equal to the root of u_speed
2 + v_speed
2. These differences appear in the decimals.
Maybe we should recalculate the values using CartoDB?
YYYY-MM-DD HH:MM:00Z
The current description for bird_density is:
Calculated number of birds per cubic kilometer. Based on a bird with a cross section of 11cm^2 and a C-band wave length type radar. For methodology, see 10.1098/rsif.2010.0116.
The current values are not those. They should be divided by 11.
UTC?
Add to /images folder
7 days * 24 hours * 3 times per hour (20 min) = 504. Two radars have less data however:
radar | count |
---|---|
De Bilt | 504 |
Wideumont | 421 (83 short) |
Zaventem | 495 (9 short) |
Den Helder | 504 |
Jabbeke | 504 |
Describe this file in a datapackage.json.
-32: no data
-30 / 30: birds + insects, light precipitation
30+: heavier precipitation, ground echos
by @leijnse
120 x 120, latitude
120 x 120, longitude
BY @jshamoun : I am now organizing the wind data for you, what is the spatial extent that you would like, or let’s say the spatial extent of your map?
File name is composed of:
txt = to indicate it is ascii
BE = Belgium
61 = Zaventem
VOL = ?
NA = ?
201304052202 = datetime
@leijnse can you figure out if this complies with OPERA file name practice and if we should rename files (e.g. drop txt_
at beginning).
This was originally recorded here, but now defined in this file.
There are a couple of questions/issues remaining:
bird_reflectivity
directly measured by the radar, or did any transformations/filtering/cutoffs happen?radial_velocity_std
calculated? Should we provide radial_velocity
(defined as: "the general movement speed in the direction of the radar")?radial velocity
, u/v_speed
, direction
and ground speed
, to indicate that this is not just birds. Is this OK?w_speed
exactly? Is it also about general movement? Negative = towards the ground?bird_density
? A DOI is preferred.Input needed from @jshamoun tomorrow.
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