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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 GUERNSEY cruise from Spithead to Great St. Lawrence Harbour started at 1765-11-12 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749493, 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: 48.856667 * Median Longitude: -21.353333 * South-bound Latitude: 47.270000 * West-bound Longitude: -33.390000 * North-bound Latitude: 49.900000 * East-bound Longitude: -6.660000
Date/Time Start: 1765-11-12T14:00:00 * Date/Time End: 1765-11-26T12:00:00
Event(s):
Guernsey_17651112_NMM_ADM/L/G189 * Latitude Start: 50.680000 * Longitude Start: -0.960000 * Latitude End: 49.830000 * Longitude End: -6.660000 * Date/Time Start: 1765-11-12T00:00:00 * Date/Time End: 1765-11-26T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Guernsey (4th Rate Frigate), Voyage: Spithead - Great St Lawrence Harbour, 1st Observer: Hugh Pallisser (Captain), 2nd Observer: Daniel Burr (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 50G 853BM
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
CourseCourseCourse of the ship during the past 24 hours
10 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 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.
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 State of the sea descriptionState sea descr
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:
280 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)

Course
(Course of the ship during the...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Decl [deg]
(It is generally accepted by t...)
12 
Wind dir descr
(All reported wind directions ...)
13 
Wind force descr
(All reported wind forces on t...)
14 
ww
(Weather description)
15 
Precip descr
16 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
Comment
26 
ID
(CLIWOC 2.1 line number)
1765-11-12T14:0047.27-33.392316.7CAPE SPEARN89W289S89E132.00-17NWBN, N, NW, WSWFIRST PART FRESH GALES, MIDDLE AND LATTER MODERATELARGE WELL FROM NFAIR0000000105730
1765-11-13T14:0047.83-29.94204CAPE SPEARN89W348S76E138.00-21W, SWSQUALLYLARGE SWELL FROM NWCLOUDY0000000105731
1765-11-14T14:0048.55-25.7614819.0CAPE SPEARS87W400N75E174.00-21SBW, S, SBEFRESH GALES AND SQUALLY0000000105732
1765-11-15T14:0049.62-23.591256.7CAPE SPEARS85W428N53E106.00-21SBE, SSE, SEBSFIRST PART FRESH GALES, MIDDLE AND LATTER MODERATEFIRST PART CLOUDY0000000105733
1765-11-16T14:0049.90-23.5910319.0CAPE SPEARS82W444N30E90.00-21SEBS, SE, SEBEFRESH GALESSHOWERS OF RAINCLOUDY1100000a trivial correction was made in this observation105734
1765-11-17T13:0049.50-22.398019.0CAPE SPEARS85W444S4E84.00-21SEBS, SE, EBSFIRST PART MODERATE, MIDDLE AND LATTER FRESH GALES AND SQUALLYMIDDLE AND LATTER RAINFIRST PART CLOUDY0100000105735
1765-11-18T13:0048.50-22.061032.6CAPE SPEARS88W447S8E61.00-21EBS, UP, SSE, OFF, S, SEBEFIRST PART STRONG GALES, LATTER LITTLE WINDSLATTER FOGGYFIRST PART CLOUDY0010000105736
1765-11-19T13:0047.82-22.4410319.0CAPE SPEARS89W440N17W64.00-21SE, SEBEFRESH GALESRAINCLOUDY0100000105737
1765-11-20T13:0047.82-21.74926.7CAPE SPEARS88W449N17W63.00-21SEBE, ESEFIRST AND LATTER PARTS MODERATE, MIDDLE SQUALLYMIDDLE RAINFIRST AND LATTER PARTS HAZY0100000105738
1765-11-21T13:0048.56-21.11-210000000105739
1765-11-22T13:0049.30-20.471482.6CAPE SPEARS86W465N47E69.00-21ESE, SBEFIRST PART FRESH GALES AND SQUALLY, MIDDLE AND LATTER LITTLE WINDSMIDDLE AND LATTER CLOUDY0000000105740
1765-11-23T13:0049.82-21.7418219.0CAPE SPEARS85W491N68E82.00-21SBE, S, SSWFRESH GALES AND SQUALLY0000000105741
1765-11-24T13:0049.30-15.012046.7CAPE SPEARS85W537S77E140.00-21SW, WBN, SWMODERATEHAZY0000000105742
1765-11-25T13:0049.23-10.4122819.0CAPE SPEARS87W597S89E185.00-20WSWFRESH GALESHAZY0000000105743
1765-11-26T12:0049.83-6.6620519.0CAPE SPEARS87W646N73E150.00-20SWBW, SWFRESH GALESHAZY0000000105744