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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 PENZANCE cruise from Halifax to New York started at 1761-05-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751148, 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: 40.848750 * Median Longitude: -67.151250 * South-bound Latitude: 38.180000 * West-bound Longitude: -73.520000 * North-bound Latitude: 44.080000 * East-bound Longitude: -63.480000
Date/Time Start: 1761-05-13T16:00:00 * Date/Time End: 1761-05-28T17:00:00
Event(s):
Penzance_17610513_NMM_ADM/L/P209 * Latitude Start: 43.400000 * Longitude Start: -63.030000 * Latitude End: 40.670000 * Longitude End: -74.040000 * Date/Time Start: 1761-05-13T00:00:00 * Date/Time End: 1761-05-28T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Penzance (5th Rate Frigate), Voyage: Halifax - New York, 1st Observer: John Boyd (Captain), Company: Royal Navy, Other ship information: 44G. 814BM
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:
305 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)
1761-05-13T16:0044.08-63.481909.3SAMBRON3/4W10S3/4E30.00-13SBE, SW, CALM, SSWFIRST PART MODERATE BREEZES, LATTER FRESH BREEZESLATTER RAINFIRST PART CLEAR0100000185954
1761-05-14T16:0043.27-64.211006.7SAMBRONBE3/4E29SSW3/4W60.00-13W, SW, SSE, ESELATTER MODERATE BREEZESFIRST PART FOGGYGREAT SWELL FROM SWLATTER CLEAR0010000185955
1761-05-15T16:0043.17-64.382122.6SAMBRONNE31S41W11.00-13NNE, CALM, S, SWLIGHT AIRS INTERMIXED WITH CALMS, NOON LIGHT BREEZESNOON CLEAR0000000185956
1761-05-16T16:0042.20-65.351956.7SAMBRON28E53S36W72.00-8SSE, SE, S, SSWMODERATE BREEZESAM A THICK FOGHAZY0010000185957
1761-05-17T16:0042.02-65.461786.7SAMBRON29E57S24W12.00-8SSW, WSW, SSW, S1/2WMODERATE BREEZES0010000185958
1761-05-18T16:0041.77-65.582286.7SAMBRON28E62S21W16.00-8SSW, S, SW, SWBWMODERATE BREEZES0010000185959
1761-05-19T16:0041.45-64.55206SAMBRON12E64ESE50.00-8SW, SSW, SWBSFREQUENT SHOWERS OF RAIN1110000185960
1761-05-20T16:0040.95-65.151959.3SAMBRONBE1/2E76S46W38.00-8SSW, SBW, SSWNOON FRESH BREEZESWEATHER CLEARING UPNOON CLEAR0000000185961
1761-05-21T16:0040.08-66.033076.7SAMBRONNE36S38W66.00-8SW, W, NWFIRST PART MODERATE BREEZES, LATTER MODERATEFIRST PART DRIZZLING RAINHAZY0100000185962
1761-05-22T16:0038.75-67.152859.3SAMBRON25E128S33W95.00-8NWBW, NW, WNWFIRST PART MODERATE BREEZES, LATTER FRESH BREEZESCLEAR0000000185963
1761-05-23T17:0038.18-67.633612.6SAMBRONNE1/2E141S35W38.00-6WNW, NW, CALMLIGHT BREEZES INTERMIXED WITH CALMS0000000185964
1761-05-24T17:0038.37-67.96391.0SAMBRON28E140N67W17.00-6W, CALM, NBE, NELIGHT AIRSCLEAR0000000185965
1761-05-25T17:0039.38-69.862199.3SANDY HOOKN72:42W69NWBW107.00-6S, SSW, SWFIRST PART MODERATE BREEZES, LATTER FRESH BREEZESCLEAR0000000185966
1761-05-26T17:0039.78-70.812536.7SAMBRON49E146NWBW1/2W50.00-6SW, SWBW, WBSFIRST ART FRESH BREEZES, LATTER MODERATEHAZY0000000185967
1761-05-27T17:0040.38-73.306419.0NANTUCKETS80E86WBN1/4N144.00-4NNE, NE, NEBE, ENEFIRST PART MODERATE BREEZES, LATTER FRESH GALESFIRST PART CLEAR, LATTER HAZY0000000a trivial correction was made in this observation185968
1761-05-28T17:0039.75-73.523022.6SANDY HOOKNNW1/2W16SSE1/2E47.00-4NEBE, NE, NEBNSTRONG GALES0000000185969