cops_ado_dsonde_metpro_d: Data of dropsondes dropped from research aircraft Do 128 (D-IBUF)

hdl:21.14106/a871f9367cb8b9933219d590aee1418456da2e4b

Corsmeier, Ulrich; Wieser, Andreas

Dataset
Summary
Dropsondes were dropped from research aircraft Do 128 (D-IBUF).

For more information see additional info in entry "cops_ado_info_1" and Do 128 flight protocols ind entry "".
For detailed information about the sondes see:
Kottmeier, Ch., T. Reetz, P. Ruppert, N. Kalthoff, 2001: A new airological sonde system for dense meteorological soundings, J. Atmos. Oceanic Technol., 18, 1495-1502 (2001)
Project
COPS (Convective and Orographically-induced Precipitation Study)
Location(s)
Northern Black Forest, Germany
Spatial Coverage
Longitude 8.19 to 8.73 Latitude 48.28 to 48.74 Altitude: 250 m relativ to NN to 12050 m relativ to NN
Temporal Coverage
2007-07-01 to 2007-07-20 (calendrical)
Use constraints
For scientific use only. No commercial use allowed. Please be aware of the common COPS/GOP/D-PHASE data policy (http://cops.wdc-climate.de/)
Data Catalog
World Data Center for Climate
Access constraints
Authorized Persons
Size
610.53 KiB (625187 Byte)
Format
netCDF.tar.gz
Status
completely archived
Creation Date
Download Permission
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Cite as
[ Derived from parent entry - See data hierarchy tab ]
Corsmeier, Ulrich; Wieser, Andreas (2012). cops_ado_data: data from research aircraft DO-128 run by FZK/IMK-TRO during COPS 2007. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.1594/WDCC/cops_ado_data

BibTeX RIS
Description
The meteorological sensors of the dropsonde are identical in contribution with the SRS 400 sonde (standard PTU unit) and the dewpoint mirror "Snow White" by Meteolabor is used.
Time intervals:
PTU-Data such as air_temperature, dew_point_temperature and air_pressure (if measured by hypsometer, see below), are measured with respect to variable time stamps (sonde nr.4 to nr.33 between 0.8 s and 2.8 s; for sonde nr.41 to nr.60 between 0.3 s and 1.1 s for air_temperature and
between 0.6 s and 2.1 s for drew_point_temperature) and linearly interpolated onto constant
1 s time intervals (accord. to GPS time interval of 1 s).
Technical specifications (accord. to manufacturer):
air_pressure:
-sondes nr.4 to nr.33:
hypsometer, range: 1100 to 5 hPa, accuracy: 0.2 %, resolution: 0.02 %
-sondes nr.41 to nr.60:
pressure is calculated (derived from GPS altitude information)
-for some sondes hypsometer-derived values were not available at times due to instrument failure. Then, pressure data were derived from GPS altitude information beginning from the onset of the malfunction. If so, this is given in the "description" attribute of variable "air_pressure" in the data file.
air_temperature:
thermocouple: range: +50 deg C to -100 deg C, accuracy: lt 0.1 deg C, resolution: 0.01 deg C
dew_point_temperature: range: +50 deg C to -100 deg C, accuracy: 0.3 deg C, resolution: 0.01 deg C.
PLEASE SEE "HORIZONTAL ACCURACY REPORT"
Description
GPS Position accuracy (according to the manufacturer):
sondes nr.4 to nr.33:
Position accuracy: 15 m RMS
Velocity accuracy: 0.2 m/s RMS steady state
sondes nr.41 to nr.60:
Position: lt 15 m, 95 % typical
Velocity: 0.1 knot (=about 0.2 m/s) RMS steady state

altitude:
is calculated from pressure data (sondes nr.4 to nr.33, excepting few measurements with malfunction of the hypsometer) or (sondes nr.41 to
nr.60) obtained by GPS receiver.

relative_intensity_of_ambient_light:
Relative intensity of the ambient light (in the visible) with respect to an empirically derived intensity maximum of full solar radiation.
It is measured by a light sensor mounted at the bottom side of the sonde and directed downwards. It is sensitive in the spectral range fr
om 460 to 1080 nm. The data can be used to detect the top of the clouds. Accuracy: no information available.
Description
[cops_ado_dsonde_metpro_d: Data of dropsondes dropped from research aircraft Do 128 (D-IBUF)]
VariableAggregationUnit
air_pressure
CF
1sechPa
air_temperature
CF
1secdegC
altitude
CF
1secm
dew_point_temperature
CF
1secdegC
latitude
CF
1secdegree_north
longitude
CF
1secdegree_east
relative_intensity_of_ambient_light
1sec0.01
wind_from_direction
CF
1secdegree
wind_speed
CF
1secm s-1
Contact typePersonORCIDOrganization
Originator
Dr. Ulrich Corsmeier
-
Karlsruher Institut für Technologie

Parent

cops_ado: contains data from DO-128 Aircraft during COPS Campaign
Details

Parent project(s)

Convective and Orographically-induced Precipitation Study

[Entry acronym: cops_ado_dsonde_metpro_d] [Entry id: 2183116]