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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 FOWEY cruise from Charlestown to Halifax started at 1769-07-18 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749338, 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: 38.310000 * Median Longitude: -70.028462 * South-bound Latitude: 32.650000 * West-bound Longitude: -78.350000 * North-bound Latitude: 42.400000 * East-bound Longitude: -63.570000
Date/Time Start: 1769-07-18T17:00:00 * Date/Time End: 1769-07-31T00:00:00
Event(s):
Fowey_17690718_NMM_ADM/L/F205 * Latitude Start: 31.830000 * Longitude Start: -77.920000 * Latitude End: 43.400000 * Longitude End: -63.030000 * Date/Time Start: 1769-07-18T00:00:00 * Date/Time End: 1769-07-31T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Fowey (6th Rate Frigate), Voyage: Charlestown - Halifax, 1st Observer: Mark Robinson (Captain), Company: Royal Navy, Other ship information: 24G 508BM
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
14 Current speed descriptionV descr
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Present weatherwwWeather description
17 Precipitation descriptionPrecip descr
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 IdentificationIDCLIWOC 2.1 line number
Size:
271 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 
Cur dir descr
(Direction of the current. Thi...)
14 
V descr
15 
Wind force descr
(All reported wind forces on t...)
16 
ww
(Weather description)
17 
Precip descr
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
ID
(CLIWOC 2.1 line number)
1769-07-18T17:0032.65-78.35249.3CHARLES TOWNW3/4N26NEBE26.001SWBW, WNW, WBS, VARIABLE, NNEFRESH BREEZESLIGHTNING FROM THE N TO SCLOUDY000010096731
1769-07-19T17:0033.58-76.4223CHARLES TOWNW21:48S61NEBE100.000SWBW, NW, SW, N, CALM, NNEFRESH BREEZES, AT 12 AM SQUALLYLIGHTNING FROM THE NW TO THE SWAT 12 RAINCLOUDY010010096732
1769-07-20T17:0035.08-75.3490CHARLES TOWNW59:21S88NE1/2N84.000NEBE, ENE, VARIABLE, ENE, ENE2MODERATEAT 5AM LITTLE WIND, AT NOON SQUALLYAT 5AM FREQUENT SQUALLS OF RAINCLOUDY WEATHER110000096733
1769-07-21T17:0036.72-73.2936219.0CHARLES TOWNW54:29S133NE136.000CALM, SEBS, S, VARIABLEFIRST PART LIGHT WINDS AND CALM, AT 9PM LIGHT AIRS, MIDDLE MODERATE, AT NOON FRESH GALES AND SQUALLYMIDDLE CLOUDY000000096734
1769-07-22T17:0037.88-71.072989.3CHARLES TOWNW45:59S176NEBE126.00-6SBW-NWBWNO CURRENTFRESH BREEZESCLOUDY000000096735
1769-07-23T17:0038.55-70.20287CHARLES TOWNW53:58S194NE56.00-6NEBN-WNWFIRST PART LIGHT AIRS000000096736
1769-07-24T17:0039.73-69.572196.7CHARLES TOWNW50:23S217NNE77.00-6WNW-SWMODERATE WITH CALMSHAZY000000096737
1769-07-25T17:0040.17-68.40396.7CHARLES TOWNW51:35S236NEBE1/2E66.00-6WNW, VARIABLE, NEMODERATE WITH CALMSHAZY000000096738
1769-07-26T17:0039.83-67.62176.7CHARLES TOWNW55:44S242E61S41.00-6NE, NEBN, ENE, NNEMODERATE WITH CALMSHAZY000000096739
1769-07-27T16:0039.85-66.25159.3CHARLES TOWNW57:25S260E63.00-8NNEFRESH BREEZESCLOUDY000000096740
1769-07-28T16:0040.32-65.542859.3CHARLES TOWNW57:38S273NE1/2E4.00-8NEBE-WNWFRESH BREEZESCLOUDY000000096741
1769-07-29T16:0041.27-63.57156.7CHARLES TOWNW57:05S310N57E106.00-8NWBW-NNEESE3MODERATECLEAR WEATHER000000096742
1769-07-30T16:0042.40-64.75820.0CHARLES TOWNW51:33S307NWBW84.00-8CALM, SEBS, SE, EESESTRONGCALMSFAIR WEATHER000000096743
1769-07-31T00:001136.7CAPE SABLEEBS6EBN, VARIABLE-ESEMODERATETHICK WEATHERFAIR001000096744