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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 Witte Cornelisz de Wit cruise from Melbourne to Batavia started at 1853-11-20 [dataset]. Koninklijk Nederlands Meteorologisch Instituut, De Bilt, PANGAEA, https://doi.org/10.1594/PANGAEA.752910, 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: -30.476970 * Median Longitude: 117.702727 * South-bound Latitude: -39.770000 * West-bound Longitude: 102.780000 * North-bound Latitude: -7.080000 * East-bound Longitude: 142.700000
Date/Time Start: 1853-11-20T02:00:00 * Date/Time End: 1853-12-22T05:00:00
Event(s):
Witte_Cornelisz_de_Wit_18531120_15+_REIS_58 * Latitude Start: -39.280000 * Longitude Start: 142.700000 * Latitude End: -6.100000 * Longitude End: 106.860000 * Date/Time Start: 1853-11-20T00:00:00 * Date/Time End: 1853-12-22T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Witte Cornelisz De Wit, Voyage: Melbourne - Batavia, 1st Observer: F. Van Rossem (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
Pressure, 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
WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
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.
10 Wind scale referenceWind scale ref#Name of, or reference to the wind scale that has been used
11 Sensor readingReadingarbitrary unitsReading of the air pressure
12 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.
13 Wind force descriptionWind force descrAll reported wind forces on this day
14 Present weatherwwWeather description
15 Precipitation descriptionPrecip descr
16 Cloud typeCloud type
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 CommentComment
26 IdentificationIDCLIWOC 2.1 line number
Size:
589 data points

Data

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


Date/Time

Latitude

Longitude

dd [deg]

ff [m/s]

PPPP [hPa]

Watch

Glasses

Decl [deg]
10 
Wind scale ref [#]
11 
Reading [arbitrary units]
12 
Wind dir descr
13 
Wind force descr
14 
ww
15 
Precip descr
16 
Cloud type
17 
Clearness
18 
Gusts
19 
Rain
20 
Fog
21 
Snow
22 
Thunder
23 
Hail
24 
Sea ice
25 
Comment
26 
ID
1853-11-20T02:00-39.28142.701339.3VM895ZOTO5H000000000281468
1853-11-21T03:00-39.62138.23749.31021.4VM86530.16ONO50000000281469
1853-11-22T03:00-39.77135.003079.31014.3VM83529.95NWTW5V030000000281470
1853-11-23T03:00-39.58132.282486.71008.5VM80429.78WZW4V04, V010000000281471
1853-11-24T03:00-37.83131.172036.71013.3VM80429.92ZZW40000000a trivial correction was made in this observation281472
1853-11-25T03:00-37.53130.65681.01013.3VM80129.92ONO10000000281473
1853-11-26T03:00-37.48129.67466.7VM814NO4H000000000281474
1853-11-27T03:00-37.43127.572946.71011.6VM81429.87WNW4V010000000281475
1853-11-28T04:00-37.83124.252676.71004.8VM8-3429.67W40000000281476
1853-11-29T04:00-35.73123.35664.61010.9VM8-2329.85ONO3V010000000281477
1853-11-30T04:00-35.55122.032666.71008.5VM8-4429.78ONO-W4AFWISSELEND0000000281478
1853-12-01T04:00-36.47120.382892.6997.0VM8-4229.44WNW2W00W201100000281479
1853-12-02T04:00-36.47120.702772.6999.4VM8-4229.51WTN2W001000000281480
1853-12-03T04:00-38.12120.922642.6997.7VM8-6229.46W2W001000000281481
1853-12-04T04:00-37.30121.302896.71010.9VM8-4429.85WNW4V010000000281482
1853-12-05T04:00-37.05120.453611015.3VM8-429.98STILV040000000281483
1853-12-06T04:00-37.15120.371206.71018.4VM8-4430.07ZOTO4V010000000281484
1853-12-07T04:00-37.00118.371424.61016.0VM8-4330.00ZOTZ3V040000000281485
1853-12-08T04:00-36.63115.373322.61014.6VM8-6229.96NNW20000000281486
1853-12-09T04:00-36.57114.452649.31006.5VM8-6529.72W5V050000000281487
1853-12-10T04:00-34.68112.8725312.31009.2VM8-6629.80WTZ6V030000000281488
1853-12-11T05:00-31.70111.421639.31011.6VM8-6529.87ZTO50000000281489
1853-12-12T05:00-29.15109.5815212.31026.1VM8-6630.30ZZO6V040000000281490
1853-12-13T05:00-26.82107.1514112.31017.3VM8-5630.04ZOTZ60000000281491
1853-12-14T05:00-24.38105.2216412.3VM8-56ZTO6V010000000281492
1853-12-15T05:00-21.90104.921439.3VM8-35ZOTZ50000000281493
1853-12-16T05:00-19.00104.171439.3VM8-35ZOTZ50000000281494
1853-12-17T05:00-16.28103.471459.3VM8-15ZOTZ50000000281495
1853-12-18T05:00-13.93103.10896.7VM8-14O4V030000000281496
1853-12-19T05:00-11.43102.871802.6VM802Z2V010000000281497
1853-12-20T05:00-10.12102.78112.6VM802NTO20000000281498
1853-12-21T05:00-8.88103.202254.6VM803ZW3OPWERKENDE LUCHT0000000281499
1853-12-22T05:00-7.08104.23361VM81STIL0000000281500