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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 PEGASUS cruise from Curacao to St. Eustacius started at 1834-07-09 [dataset]. Nationaal Archief of the Netherlands, Den Haag, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.751127, 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: 14.377500 * Median Longitude: -65.895000 * South-bound Latitude: 11.730000 * West-bound Longitude: -69.020000 * North-bound Latitude: 17.500000 * East-bound Longitude: -62.810000
Date/Time Start: 1834-07-09T17:00:00 * Date/Time End: 1834-07-24T16:00:00
Event(s):
Pegasus_18340709_MAR_D23905_3580 * Latitude Start: 12.370000 * Longitude Start: -68.570000 * Latitude End: 17.500000 * Longitude End: -62.970000 * Date/Time Start: 1834-07-09T00:00:00 * Date/Time End: 1834-07-24T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Pegasus (Brik), Voyage: Curacao - St Eustacius, 1st Observer: J.P. Muller (Kltz), Company: MAR, Other ship information: SCHIP IS UITGERUST MET 16 KARRONA DES A 30 EN 2 JAGERS A 6 POND EN BEMAND MET 100 KOPPEN EN 10 JONGENS BOVEN DE ROL
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
Temperature, airTTT°C
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
10 LandmarkLandmarkName of second landmark
11 BearingBearingBearing of the second landmark
12 LandmarkLandmarkName of third landmark
13 BearingBearingBearing of the third landmark
14 --1 If position is considered to be coastal (in port or near coastal disturbances)
15 WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
16 GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
17 CourseCourseCourse of the ship during the past 24 hours
18 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
19 CommentCommentOther remarks, that were not possible to put in the other remark fields
20 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.
21 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
22 Sensor readingReadingarbitrary unitsReading of the air pressure
23 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.
24 Wind force descriptionWind force descrAll reported wind forces on this day
25 Present weatherwwWeather description
26 Precipitation descriptionPrecip descr
27 Cloud typeCloud type
28 ClearnessClearness
29 GustsGusts1 If wind gusts are reported
30 Precipitation/RainRain1 If rain was reported
31 FogFog1 If fog was reported
32 Snow typeSnow1 If snow was reported
33 ThunderThunder1 If thunder and or lightning was reported
34 HailHail1 If hail was reported
35 Sea iceSea ice1 If sea-ice or icebergs were reported
36 IdentificationIDCLIWOC 2.1 line number
Size:
323 data points

Data

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


Date/Time

Latitude

Longitude

dd [deg]
(Wind direction (from which th...)

ff [m/s]
(calculated from the descripti...)

PPPP [hPa]
(No temperature correction was...)

TTT [°C]

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)
10 
Landmark
(Name of second landmark)
11 
Bearing
(Bearing of the second landmark)
12 
Landmark
(Name of third landmark)
13 
Bearing
(Bearing of the third landmark)
14 
-
(1 If position is considered t...)
15 
Watch
(Name of the period of 4 hours...)
16 
Glasses
(Number of glasses within a wa...)
17 
Course
(Course of the ship during the...)
18 
Distance [arbitrary units]
(Distance travelled during the...)
19 
Comment
(Other remarks, that were not ...)
20 
Decl [deg]
(It is generally accepted by t...)
21 
Reading [arbitrary units]
(Reading of the (outside) air ...)
22 
Reading [arbitrary units]
(Reading of the air pressure)
23 
Wind dir descr
(All reported wind directions ...)
24 
Wind force descr
(All reported wind forces on t...)
25 
ww
(Weather description)
26 
Precip descr
27 
Cloud type
28 
Clearness
29 
Gusts
(1 If wind gusts are reported)
30 
Rain
(1 If rain was reported)
31 
Fog
(1 If fog was reported)
32 
Snow
(1 If snow was reported)
33 
Thunder
(1 If thunder and or lightning...)
34 
Hail
(1 If hail was reported)
35 
Sea ice
(1 If sea-ice or icebergs were...)
36 
ID
(CLIWOC 2.1 line number)
1834-07-09T17:0011.77-69.021184.6O HOEK VAN CURACAONOTO 1/4 OTAFELBERG OP CURACAONOMIDDELSTE VAN DE DRIE BROEDERSNTW 1/4 WVM8ZO 1/2 Z1.75ANKER OP.5OTZ-OZOBRAMZEILSKOELTEGOED WEEROVERDRIJVENDE LUCHTHELDERE LUCHT0000000185037
1834-07-10T17:0011.73-68.781189.3VM8ZOTO 1/8 O7.255O-OZOGEREEFDE MARSZEILSKOELTE EN AFNEMENDE KOELTEWOLKDRIJVENDE LUCHT0000000185038
1834-07-11T17:0011.75-68.591182.6VM8OZO9.755O-OZOBRAMZEILSKOELTE, FLAUWE BRAMZEILSKOELTEMOOI WEERHELDERE LUCHT0000000185039
1834-07-12T17:0013.38-68.191392.6VM8NOTN22.754OTZ-ZOBRAMZEILSKOELTE, FLAUWE BRAMZEILSKOELTEOVERDRIJVENDE LUCHTHELDERE LUCHT0000000185040
1834-07-13T16:0013.95-67.491166.7VM8O 2/3 Z10.503ZOTO-OZOSTIJVE BRAMZEILSKOELTE EN MARSZEILSKOELTEWOLKDRIJVENDE LUCHT0000000185041
1834-07-14T16:0015.00-67.00714.6VM8NNO 1/8 O18.503OTZ-ONOONGESTADIGE BRAMZEILSKOELTEWEINIG REGENWOLKDRIJVENDE LUCHT0100000185042
1834-07-15T16:0013.93-65.291272.0VM8Z 7/8 O11.503OTZ-ZOTOAFNEMENDE KOELTEBUIENREGENBUIENDIKKE LUCHT, OVERDRIJVENDE LUCHT1100000185043
1834-07-16T16:0014.57-66.641164.6VM8NTO 1/4 O9.753O-OZOBRAMZEILSKOELTEGOED WEERWOLKDRIJVENDE LUCHT0000000185044
1834-07-17T16:0014.27-66.22822.6VM8ZO 3/4 O7.503O-OTNFLAUWE BRAMZEILSKOELTEWOLKDRIJVENDE LUCHT0000000185045
1834-07-18T16:0015.77-65.801164.6VM8NTO 1/3 O26.003O-OZOBRAMZEILSKOELTE EN FLAUWE BRAMZEILSKOELTEWOLKDRIJVENDE LUCHT0000000185046
1834-07-19T16:0014.72-65.00934.6VM8ZO 2/3 Z19.503OTN-OBRAMZEILSKOELTEGOED WEERWOLKDRIJVENDE LUCHTHELDERE LUCHT0000000185047
1834-07-20T16:0014.85-63.941162.61023.730.6VM8O 2/3 N15.50387.0029.35O-OZOFLAUWE BRAMZEILSKOELTEOVERDRIJVENDE LUCHT0000000185048
1834-07-21T16:0015.83-63.55934.6VM8NTO 2/3 O15.503OTZ-OBRAMZEILSKOELTEGOED WEEROVERDRIJVENDE LUCHT0000000185049
1834-07-22T16:0014.50-62.81934.01025.826.7VM8ZZO 1/2 O22.50380.0029.41OTN-OAFNEMENDE BRAMZEILSKOELTEHELDERE LUCHT0000000185050
1834-07-23T16:0016.52-63.03714.61025.530.6VM8N 1/2 W30.50387.0029.40O-ONOBRAMZEILSKOELTE EN FLAUWE KOELTEMOOI WEEROVERDRIJVENDE LUCHTHELDERE LUCHT0000000185051
1834-07-24T16:0017.50-62.97462.61022.030.61VM8187.0029.30OTZ-NOONGESTADIGE FLAUWE BRAMZEILSKOELTEHELDERE LUCHT0000000185052