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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 VALK cruise from Curacao to St. Eustacius started at 1831-04-12 [dataset]. Nationaal Archief of the Netherlands, Den Haag, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.752625, 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: 15.485333 * Median Longitude: -66.410667 * South-bound Latitude: 12.200000 * West-bound Longitude: -68.350000 * North-bound Latitude: 17.810000 * East-bound Longitude: -62.970000
Date/Time Start: 1831-04-12T00:00:00 * Date/Time End: 1831-04-27T16:00:00
Event(s):
Valk_18310412_MAR_D23905_4661 * Latitude Start: 12.370000 * Longitude Start: -68.570000 * Latitude End: 17.500000 * Longitude End: -62.970000 * Date/Time Start: 1831-04-12T00:00:00 * Date/Time End: 1831-04-27T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Valk (Brik), Voyage: Curacao - St Eustacius, 1st Observer: W.J. Van Ees (Kltz), Company: MAR, Other ship information: JOURNAAL VAN DE VALK, OP ZIJN REIZEN TUSSEN NEDERLAND, SURINAME, CURAÇAO EN AFRIKA TUSSEN 1824 EN 1832. VAART VOORNAMELIJK IN WEST-INDIE. BEMANNING VAN 106 KOPPEN, BEWAPEND MET 16 30-PONDS STUKKEN EN 2 8-PONDERS. JOURNAAL BEGINT OP 24 SEPTEMBER 1824. BEGIN MET INVOEREN OP 22 JANUARI 1827, OMDAT PAS DAN GOEDE WEERGEGEVENS WORDEN GEGEVEN.
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
--1 If position is considered to be coastal (in port or near coastal disturbances)
WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
10 GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
11 CourseCourseCourse of the ship during the past 24 hours
12 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
13 CommentCommentOther remarks, that were not possible to put in the other remark fields
14 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.
15 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.
16 Wind force descriptionWind force descrAll reported wind forces on this day
17 Precipitation descriptionPrecip descr
18 Cloud typeCloud type
19 ClearnessClearness
20 GustsGusts1 If wind gusts are reported
21 Precipitation/RainRain1 If rain was reported
22 FogFog1 If fog was reported
23 Snow typeSnow1 If snow was reported
24 ThunderThunder1 If thunder and or lightning was reported
25 HailHail1 If hail was reported
26 Sea iceSea ice1 If sea-ice or icebergs were reported
27 IdentificationIDCLIWOC 2.1 line number
Size:
285 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

-

Watch
10 
Glasses
11 
Course
12 
Distance [arbitrary units]
13 
Comment
14 
Decl [deg]
15 
Wind dir descr
16 
Wind force descr
17 
Precip descr
18 
Cloud type
19 
Clearness
20 
Gusts
21 
Rain
22 
Fog
23 
Snow
24 
Thunder
25 
Hail
26 
Sea ice
27 
ID
1831-04-12T00:00ONDER ZEIL VAN CURAÇAO NAAR ST. EUSTATIUS.0000000264017
1831-04-13T17:0012.20-68.351294.6WESTHOEK BONAIREN 28 OVM8O 1/8 Z9.25BESTEK SINDS 6 UUR PVW.5ONO-ZOTOBRAMZEILSKOELTEEEN WEINIG REGENBUIJIGE LUCHTOPKLARENDE LUCHT1100000264018
1831-04-14T17:0012.43-68.291182.6NO HOEK BONAIREZ 40 OVM8ONO 1/8 O9.755NO-OZOFLAUWE BRAMZEILSKOELTEEEN WEINIG REGENBEWOLKTE LUCHTHELDERE LUCHT0100000264019
1831-04-15T17:0012.37-67.86614.6VM8O 1/2 N10.505NO-NOTOBRAMZEILSKOELTEWOLKDRIJVENDE LUCHTHELDERE LUCHT0000000264020
1831-04-16T17:0013.60-67.87944.6VM8NTO21.254OBRAMZEILSKOELTEHELDERE LUCHT0000000264021
1831-04-17T17:0015.07-68.05944.6VM8NTO 1/2 O22.504OBRAMZEILSKOELTEEEN WEINIG REGENBEWOLKTE, BUIJIGE LUCHTOPKLARENDE LUCHT1100000264022
1831-04-18T17:0016.59-67.79942.6VM8NTO 2/3 O22.504OFLAUWE BRAMZEILSKOELTEHELDERE LUCHT0000000264023
1831-04-19T17:0017.81-67.681042.6VM8NTO 2/3 O18.503O-OTZFLAUWE BRAMZEILSKOELTEHELDERE LUCHT0000000264024
1831-04-20T16:0017.32-67.27712.6VM8ZO 1/2 Z11.753ONOFLAUWE BRAMZEILSKOELTEHELDERE LUCHT0000000264025
1831-04-21T16:0016.67-66.69481.0VM8ZO 3/4 O17.003NOTO-NOFLAUWE KOELTEHELDERE LUCHT0000000264026
1831-04-22T16:0016.63-66.04932.6VM8O12.503OFLAUWE BRAMZEILSKOELTEBEWOLKTE LUCHT0000000264027
1831-04-23T16:0015.85-65.21714.6VM8ZOTO 1/2 O17.003NOTO-ONOBRAMZEILSKOELTEWOLKDRIJVENDE LUCHTHELDERE LUCHT0000000264028
1831-04-24T16:0015.65-64.58714.6VM8ZOTO 2/3 O13.253OTN-ONOBRAMZEILSKOELTEBEWOLKTE LUCHTHELDERE LUCHT0000000264029
1831-04-25T16:0015.42-64.06934.6VM8OZO 2/3 O11.753OTN-OBRAMZEILSKOELTE EN FLAUWE BRAMZEILSKOELTEHELDERE LUCHT0000000264030
1831-04-26T16:0017.17-63.451164.6VM8NNO 1/2 O23.253OZOBRAMZEILSKOELTEDIKKE, BEWOLKTE LUCHT0000000264031
1831-04-27T16:0017.50-62.97110000000264032