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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 WALVISCH cruise from Tafelbaai to Java started at 1851-08-22 [dataset]. Koninklijk Nederlands Meteorologisch Instituut, De Bilt, PANGAEA, https://doi.org/10.1594/PANGAEA.752823, 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: -32.132571 * Median Longitude: 67.917143 * South-bound Latitude: -39.970000 * West-bound Longitude: 14.580000 * North-bound Latitude: -6.100000 * East-bound Longitude: 106.900000
Date/Time Start: 1851-08-22T00:00:00 * Date/Time End: 1851-09-29T05:00:00
Event(s):
Walvisch_18510822_O_REIS_26_P262-272 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: -7.500000 * Longitude End: 101.850000 * Date/Time Start: 1851-08-22T00:00:00 * Date/Time End: 1851-09-29T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Walvisch, Voyage: Tafelbaai - Java, 1st Observer: F. Schut (Kapitein)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeGeocode
LATITUDELatitudeGeocode
LONGITUDELongitudeGeocode
Wind 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.
Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
11 GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
12 DeclinationDecldegIt 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.
13 Wind scale referenceWind scale ref#Name of, or reference to the wind scale that has been used
14 Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Present weatherwwWeather description
17 Precipitation descriptionPrecip descr
18 State of the sea descriptionState sea descr
19 Cloud typeCloud type
20 ClearnessClearness
21 GustsGusts1 If wind gusts are reported
22 Precipitation/RainRain1 If rain was reported
23 FogFog1 If fog was reported
24 Snow typeSnow1 If snow was reported
25 ThunderThunder1 If thunder and or lightning was reported
26 HailHail1 If hail was reported
27 Sea iceSea ice1 If sea-ice or icebergs were reported
28 IdentificationIDCLIWOC 2.1 line number
Size:
668 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/Time

Latitude

Longitude

dd [deg]

ff [m/s]

Landmark

Bearing

Distance [arbitrary units]

-
10 
Watch
11 
Glasses
12 
Decl [deg]
13 
Wind scale ref [#]
14 
Wind dir descr
15 
Wind force descr
16 
ww
17 
Precip descr
18 
State sea descr
19 
Cloud type
20 
Clearness
21 
Gusts
22 
Rain
23 
Fog
24 
Snow
25 
Thunder
26 
Hail
27 
Sea ice
28 
ID
1851-08-22T00:0015815.4VM87ZTO, ZZO7W20Z01V030100000275013
1851-08-23T11:00-33.9716.178415.4VM8-297ZO, OZO7V04, V030000000275014
1851-08-24T11:00-35.2214.583912.3VM8-296OTZ, ONO6V000000000275015
1851-08-25T11:00-37.7014.823549.3VM8-295NOTN, NNO5V06, V030000000275016
1851-08-26T11:00-39.1217.602856.7VM8-304N, NW4V00, V040000000275017
1851-08-27T11:00-39.9518.7046.7VM8-304NW, NOTN4V000000000275018
1851-08-28T11:00-39.6520.902746.7VM8-304NWTW4V050000000275019
1851-08-29T10:00-39.7824.472399.3VM8-315WNW, W5W21V030100000275020
1851-08-30T10:00-39.6528.68489.3VM8-315OMLOPEND, O, OTN5V00, V050000000275021
1851-08-31T10:00-39.8731.3526212.3VM8-316WNW6W01, W40W20V031100100275022
1851-09-01T10:00-39.9735.3825019.0VM8-318WTZ, WTN8V03, V000000000275023
1851-09-02T09:00-39.1240.3720626.8VM8-3010ZWTN10STORMWEERZ010000000275024
1851-09-03T09:00-38.3045.5020722.6VM8-299WZW, ZWTW9W011000000275025
1851-09-04T09:00-37.7250.5324212.3VM8-286W6V04, V030000000275026
1851-09-05T08:00-37.6554.9027712.3VM8-276NW, NWTW6AFWLV100000000275027
1851-09-06T08:00-38.0359.172789.3VM8-265NWTW5V000000000275028
1851-09-07T08:00-38.1563.6729015.4VM8-257NW7Z01V050000000275029
1851-09-08T07:00-38.5768.9724619.0VM8-248WTN, W8Z02H010000000275030
1851-09-09T07:00-39.0774.6724726.8VM8-2310NW, W10W01, W00W20, W261100010275031
1851-09-10T07:00-39.3879.4330412.3VM8-226NW, NWTN6V04, V000000000275032
1851-09-11T06:00-37.8783.7029415.4VM8-217NWTW, NW7AFWLV000000000275033
1851-09-12T06:00-36.4388.472339.3VM8-155WZW5V03, V040000000275034
1851-09-13T06:00-35.3792.402336.7VM8-154WZW4V000000000275035
1851-09-14T06:00-34.0295.7330212.3VM8-136NWTN, NW6V050000000275036
1851-09-15T05:00-32.3898.772956.7VM8-94NW, NWTW4V000000000275037
1851-09-16T05:00-30.62101.7722.6VM8-92N, NTOSTILV050000000275038
1851-09-17T05:00-30.17102.703429.3VM8-75NNW, NTW5V000000000275039
1851-09-18T05:00-28.73105.672412.6VM8-72WTN, WZW2V030000000275040
1851-09-19T05:00-26.93106.901419.3VM8-55ZOTZ5V04, V050000000275041
1851-09-20T05:00-24.60106.731309.3VM8-55ZO5W00W20V031100000275042
1851-09-21T05:00-21.43105.901219.3VM8-35ZO, ZOTO5V000000000275043
1851-09-22T05:00-17.45105.401349.3VM8-15ZO5V040000000275044
1851-09-23T05:00-14.02105.431239.3ZAGEN CHRISTMAS EILANDVM8-15ZOTO5V04, V030000000275045
1851-09-24T05:00-10.60105.531359.3VM805ZO5W20V05H010100000275046
1851-09-25T05:00-7.05105.28126.7VM814ZO, NW, NTO4V000000000275047
1851-09-26T00:00451.0VM81OMLOPEND, NO10000000275048
1851-09-27T00:000.0BUTTONOZO11VM8STILV000000000275049
1851-09-28T00:00360POLO PANJANGZOVM8Z, N0000000275050
1851-09-29T05:00-6.10106.861VM810000000275051