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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 MERCUUR cruise from Marguerita to Curaçao started at 1820-09-18 [dataset]. Nationaal Archief of the Netherlands, Den Haag, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750746, 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: 11.382500 * Median Longitude: -65.703750 * South-bound Latitude: 10.650000 * West-bound Longitude: -67.380000 * North-bound Latitude: 11.780000 * East-bound Longitude: -63.910000
Date/Time Start: 1820-09-18T16:00:00 * Date/Time End: 1820-09-30T00:00:00
Event(s):
Mercuur_18200918_MAR_D23905_3093 * Latitude: 11.300000 * Longitude: -66.470000 * Date/Time Start: 1820-09-18T00:00:00 * Date/Time End: 1820-09-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Mercuur (Brik), Voyage: to Marguerita, Company: MAR
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
LandmarkLandmarkName of second landmark
10 BearingBearingBearing of the second landmark
11 --1 If position is considered to be coastal (in port or near coastal disturbances)
12 WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
13 GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
14 CourseCourseCourse of the ship during the past 24 hours
15 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
16 CommentCommentOther remarks, that were not possible to put in the other remark fields
17 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.
18 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.
19 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
20 Wind force descriptionWind force descrAll reported wind forces on this day
21 Present weatherwwWeather description
22 Cloud typeCloud type
23 ClearnessClearness
24 GustsGusts1 If wind gusts are reported
25 Precipitation/RainRain1 If rain was reported
26 FogFog1 If fog was reported
27 Snow typeSnow1 If snow was reported
28 ThunderThunder1 If thunder and or lightning was reported
29 HailHail1 If hail was reported
30 Sea iceSea ice1 If sea-ice or icebergs were reported
31 IdentificationIDCLIWOC 2.1 line number
Size:
170 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...)

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)

Distance [arbitrary units]
(Distance to the first landmark)

Landmark
(Name of second landmark)
10 
Bearing
(Bearing of the second landmark)
11 
-
(1 If position is considered t...)
12 
Watch
(Name of the period of 4 hours...)
13 
Glasses
(Number of glasses within a wa...)
14 
Course
(Course of the ship during the...)
15 
Distance [arbitrary units]
(Distance travelled during the...)
16 
Comment
(Other remarks, that were not ...)
17 
Decl [deg]
(It is generally accepted by t...)
18 
Wind dir descr
(All reported wind directions ...)
19 
Cur dir descr
(Direction of the current. Thi...)
20 
Wind force descr
(All reported wind forces on t...)
21 
ww
(Weather description)
22 
Cloud type
23 
Clearness
24 
Gusts
(1 If wind gusts are reported)
25 
Rain
(1 If rain was reported)
26 
Fog
(1 If fog was reported)
27 
Snow
(1 If snow was reported)
28 
Thunder
(1 If thunder and or lightning...)
29 
Hail
(1 If hail was reported)
30 
Sea ice
(1 If sea-ice or icebergs were...)
31 
ID
(CLIWOC 2.1 line number)
1820-09-18T16:0011.30-66.47956.7SCILLA O HOEK (GIS)NOTN10VM8ZEILEN NAAR MARGUERITA.5OSTIJVE BRAMZEILSKOELTEKLARE LUCHT0000000167879
1820-09-19T16:0011.78-65.70VM85MOOI WEER0000000167880
1820-09-20T16:0011.75-65.15BLANZAONO650000000167881
1820-09-21T16:0011.28-64.500.0MARGUERITA W PUNTZTO 1/2 OMARGUERITA O PUNTOTZVM85DOODSTIL0000000167882
1820-09-22T00:0010000000167883
1820-09-23T16:0011.43-63.912.0MARGUERITA W PUNTZ21VM85NWAFNEMENDE KOELTEMOOI WEER0000000167884
1820-09-25T00:000000000167885
1820-09-26T16:0010.65-65.755LA GUIJARAZZOKAAP BLANCOZWTW 1/2 WVM85N0000000167886
1820-09-27T16:0011.17-66.772301.0VM8N 3/4 O2.505ZWFLAUWE KOELTE0000000167887
1820-09-28T16:0011.70-67.381401.0VM85ZOFLAUWE KOELTEHEIIGE TOT KLARE LUCHT0000000167888
1820-09-29T00:001462.6ZEILEN DE HAVEN VAN CURACAO BINNEN, WAAR MEN LATER TEN ANKER GAAT.ZO-ZOTZFLAUWE BRAMZEILSKOELTEWOLKDRIJVENDE LUCHT0000000167889
1820-09-30T00:0010000000167890