From 1998-02-17 to 1998-03-06 a total of 70 radiosondes were launched from RV Aranda at intervalls of about 6 hours. Measured parameters are temperature, pressure and humidity. Wind direction and speed are calculated from GPS positioning. The dataset consists of one archive file (.tar) which contains 70 data files, one for each sounding. The file format is 'ascii-text', the representation of the measured parameters is described in the 'readme'-file inside the .tar-archive and in the 'additional_info' entry (BASIS1998_aranda_rs_info).
Baltic Sea: Longitude 10 to 30
Latitude 53 to 66
Altitude: 0 m relativ to sea level
For scientific use only
2.27 MiB (2375680 Byte)
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[ Derived from parent entry - See data hierarchy tab ]
Brümmer, Burghard; Müller, Gerd; Thiemann, Stefan; Wetzel, Christian (2012). BASIS 1998 - Baltic Air Sea Ice Study 1998: meteorological measurements of the research aircraft Falcon and radiosoundings at the research vessel Aranda and 3 land stations. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.1594/WDCC/UNI_HH_MI_BASIS1998
The data has been quality checked. Obviously wrong measurements have been sorted out. For details on sensor type, sensor accuracy, launching procedure, ground check etc. see 'additional_info' entry (BASIS1998_aranda_rs_info).
Few dates may be missing due to equipment failure or severe weather. Some sounding may contain data gaps due to transmission errors. Wind data shortly after launch may be intermittent due to GPS problems.