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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 ONVERWAGT cruise from Spitsbergen to Schiedam started at 1794-07-27 [dataset]. Nationaal Archief of the Netherlands, Den Haag, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750999, 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: 65.452667 * Median Longitude: 2.408000 * South-bound Latitude: 52.580000 * West-bound Longitude: 0.700000 * North-bound Latitude: 78.630000 * East-bound Longitude: 5.520000
Date/Time Start: 1794-07-27T12:00:00 * Date/Time End: 1794-08-14T00:00:00
Event(s):
Onverwagt_17940727_FAM_C22253_3 * Latitude Start: 78.630000 * Longitude Start: 7.520000 * Latitude End: 51.900000 * Longitude End: 3.930000 * Date/Time Start: 1794-07-27T00:00:00 * Date/Time End: 1794-08-14T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Onverwagt (Whaler), Voyage: Spitsbergen - Schiedam, 1st Observer: P. Bezemer (Commandeur), Company: WHA, Other ship information: 47 KOPPEN
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
Image number/nameImage no/nameIdentification Number of the original image
LandmarkLandmarkName of first landmark
BearingBearingBearing of 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 Wind force descriptionWind force descrAll reported wind forces on this day
20 Precipitation descriptionPrecip descr
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:
291 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...)

Image no/name
(Identification Number of the ...)

Landmark
(Name of first landmark)

Bearing
(Bearing of 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 
Wind force descr
(All reported wind forces on t...)
20 
Precip descr
21 
Gusts
(1 If wind gusts are reported)
22 
Rain
(1 If rain was reported)
23 
Fog
(1 If fog was reported)
24 
Snow
(1 If snow was reported)
25 
Thunder
(1 If thunder and or lightning...)
26 
Hail
(1 If hail was reported)
27 
Sea ice
(1 If sea-ice or icebergs were...)
28 
ID
(CLIWOC 2.1 line number)
1794-07-27T12:0078.635.5217512.3FAM_C22253_3_0088VOORLAND, NOORDHOEKNOZHOEKZOTOVM8GAAN OP ZIJN HOLLANDS WAAKE, MET 25 SCHEPE BIJEEN-28ZZWSTIJVE KOELTE0000000181118
1794-07-28T12:0076.332.673584.6FAM_C22253_3_0088VM8ZZW1/2Z36.00-25N-NNOBRAMZEILSKOELTE0000000181119
1794-07-29T12:0073.921.013544.6FAM_C22253_3_0088VM8ZTW37.00-29NNOBRAMZEILSKOELTE0000000181120
1794-07-30T12:0072.380.703324.6FAM_C22253_3_0088VM8Z1/2W23.50-28NBRAMZEILSKOELTE0000000181121
1794-07-31T12:0071.280.763551.0FAM_C22253_3_0088VM8Z1/3W16.25-28NNOFLAUWE KOELTE0000000181122
1794-08-01T12:0069.050.963551.0FAM_C22253_3_0089VM8Z31.50-28NNOFLAUWE KOELTE0000000181123
1794-08-02T12:0067.321.171081.0FAM_C22253_3_0089VM8Z26.00-27O-ZOBRAMZEILSKOELTE-FLAUW0000000181124
1794-08-03T12:0064.421.72639.3FAM_C22253_3_0089VM8Z1/4O44.00-27OGEREEFDE MARSZEILSKOELTE0000000181125
1794-08-04T12:0062.821.93634.9FAM_C22253_3_0089VM8Z24.00-27OFRISSE BRAMZEILSKOELTE0000000181126
1794-08-05T12:0061.832.54456.7FAM_C22253_3_0089VM8ZTO15.00-23ONOSTIJVE WAIJENVRIJ DIK VAN REGEN0100000181127
1794-08-06T12:0060.602.98224.6FAM_C22253_3_0089VM8Z1/2O18.50-23NOBRAMZEILSKOELTE0000000181128
1794-08-07T12:0059.133.183371.0FAM_C22253_3_0089VM8Z22.00-23NO-NFLAUW KOELTJE0000000181129
1794-08-08T12:0057.033.3912.6FAM_C22253_3_0089VM8Z33.00-22NNOFLAUWE BRAMZEILSKOELTE0000000181130
1794-08-09T12:0054.473.59234.6FAM_C22253_3_0089VM8Z39.00-22NOBRAMZEILSKOELTE0000000181131
1794-08-10T12:0052.584.003384.6FAM_C22253_3_00891VM8Z1/3O29.00-22NBRAMZEILSKOELTE0000000181132
1794-08-14T00:00231.0FAM_C22253_3_00891VM8NNOFRISSE KOELTE0000000181133