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García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2010): Meteorological observations during Prins Veldmaarschalk cruise from Batavia to the Netherlands started at 1851-08-01 [dataset]. Koninklijk Nederlands Meteorologisch Instituut, De Bilt, PANGAEA, https://doi.org/10.1594/PANGAEA.751579, In: Jones, Philip D; Wheeler, Dennis A; Können, Gunther P; Koek, Frits B; Prieto, Maria del Rosario; García-Herrera, Ricardo (2007): Climatological observations from ship logbooks between 1750 and 1854 (release 2.1) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.611088

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Related to:
García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2005): CLIWOC: A Climatological Database for the World's Oceans 1750–1854 (and 10 more publications about CLIWOC results in the same volume). Climatic Change, 73(1-2), 1-12ff, https://doi.org/10.1007/s10584-005-6952-6
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854
Coverage:
Median Latitude: -0.410648 * Median Longitude: 10.538889 * South-bound Latitude: -34.870000 * West-bound Longitude: -31.820000 * North-bound Latitude: 51.750000 * East-bound Longitude: 103.950000
Date/Time Start: 1851-08-01T00:00:00 * Date/Time End: 1851-11-28T12:00:00
Event(s):
Prins_Veldmaarschalk_18510801_15+_REIS_56_P14-23 * Latitude Start: -6.100000 * Longitude Start: 106.860000 * Latitude End: 53.000000 * Longitude End: 4.490000 * Date/Time Start: 1851-08-01T00:00:00 * Date/Time End: 1851-11-28T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Prins Veldmaarschalk, Voyage: Batavia - Nederland, Other ship information: JOURNAAL VAN DE PRINS VELDMAARSCHALK. VAN BATAVIA NAAR NEDERLAND VIA KAAP DE GOEDE HOOP. DE REIS DUURT VAN 31 JULI 1851 TOT 21 JANUARI 1853. BAROMETER GEMIDDELD 3,8 TE LAAG VOOR ALLE REIZEN. OOK IN DIT JOURNAAL WORDT HET MISWIJZEND KOMPAS GEHANTEERD.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4Wind directiondddegWind direction (from which the wind is blowing) in whole degrees from: 1-360; 361 = calm, 362 = variable. It is not clear from many logbook entries whether the wind direction has been corrected for the magnetic variation (or declination). To avoid any misunderstanding, all winds from reports that included a valid position in the period 1750-1854 were corrected. All other wind directions are given without being corrected.
5Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
6Pressure, atmosphericPPPPhPaNo temperature correction was applied. The following factors have been used for the conversion to hPa: 2.54 cm in an inch; 13.596 specific gravity of mercury; 980.65 cm/s gravity at 45° latitude
7Temperature, airTTT°C
8LandmarkLandmarkName of first landmark
9BearingBearingBearing of the first landmark
10Distance to landmarkDistancearbitrary unitsDistance to the first landmark
11LandmarkLandmarkName of second landmark
12BearingBearingBearing of the second landmark
13Distance to landmarkDistancearbitrary unitsDistance to the second landmark
14LandmarkLandmarkName of third landmark
15BearingBearingBearing of the third landmark
16Distance to landmarkDistancearbitrary unitsDistance to the third landmark
17--1 If position is considered to be coastal (in port or near coastal disturbances)
18WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
19GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
20CommentCommentAny remark, found in the logbook on this particular day, about the ship, sails, rigging, etc.
21CommentCommentAny remark, found in the logbook on this particular day, about any biological item
22CommentCommentOther remarks, that were not possible to put in the other remark fields
23DeclinationDecldegIt is generally accepted by the CLIWOC team that the wind directions, reported by the ships officers, were relative to the magnetic North direction. Navigators were well aware of the difference between the true and magnetic north direction, but the compasses (we assumed that the bearing-compasses were mostly used for determining the wind direction) were not always adjusted. Therefore the wind direction has to be corrected. The magnetic declination (or variation, as it is known on board ships) is given for the whole CLIWOC period (1750-1850) for every 5x5 degree square. The number was added to the wind direction to get the true wind direction.
24Wind scale referenceWind scale ref#Name of, or reference to the wind scale that has been used
25Compass, established errorCompass established e
26Compass, applied correctionCompass applied correction
27Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
28Sensor readingReadingarbitrary unitsReading of the air pressure
29Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
30Wind force descriptionWind force descrAll reported wind forces on this day
31Present weatherwwWeather description
32Precipitation descriptionPrecip descr
33State of the sea descriptionState sea descr
34Cloud typeCloud type
35ClearnessClearness
36GustsGusts1 If wind gusts are reported
37Precipitation/RainRain1 If rain was reported
38FogFog1 If fog was reported
39Snow typeSnow1 If snow was reported
40ThunderThunder1 If thunder and or lightning was reported
41HailHail1 If hail was reported
42Sea iceSea ice1 If sea-ice or icebergs were reported
43IdentificationIDCLIWOC 2.1 line number
Size:
2408 data points

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