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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 BLONDE cruise from Prince Rupert Bay to Falmouth started at 1794-03-28 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747665, 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: 37.090455 * Median Longitude: -42.955455 * South-bound Latitude: 20.650000 * West-bound Longitude: -60.820000 * North-bound Latitude: 49.950000 * East-bound Longitude: -10.180000
Date/Time Start: 1794-03-28T16:00:00 * Date/Time End: 1794-04-18T13:00:00
Event(s):
Blonde_17940328_NMM_ADM/L/B116 * Latitude Start: 20.650000 * Longitude Start: -60.820000 * Latitude End: 49.950000 * Longitude End: -5.000000 * Date/Time Start: 1794-03-28T00:00:00 * Date/Time End: 1794-04-18T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Blonde (5th Rate Frigate), Voyage: Prince Ruperts Bay - Falmouth Uk, 1st Observer: John Markham (Captain), Company: Royal Navy, Other ship information: 32G 677BM
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 Precipitation descriptionPrecip descr
15 State of the sea descriptionState sea descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 CommentComment
25 IdentificationIDCLIWOC 2.1 line number
Size:
416 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 
Precip descr
15 
State sea descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
Comment
25 
ID
(CLIWOC 2.1 line number)
1794-03-28T16:0020.65-60.82809.3N22:59E198.001EBNFRESH BREEZESHAZY WEATHER000000030181
1794-03-29T16:0023.43-59.881006.7N20E176.00-1EBSMODERATECLOUDY000000030182
1794-03-30T16:0025.50-58.671006.7BERMUDAN10:59W243N30E131.00-1EBSMODERATECLOUDY000000030183
1794-03-31T16:0026.22-58.231342.6BERMUDAN36:3W159N28E53.00-1SELIGHT BREEZESCLEAR000000030184
1794-04-01T16:0027.38-56.881212.6BERMUDAN41:47W144N17E80.00-3SEBELIGHT BREEZESCLEAR0000000a trivial correction was made in this observation30185
1794-04-02T16:0029.50-55.002092.6BERMUDAN65:57W159N56E91.00-5SWBSLIGHT BREEZESCLEAR000000030186
1794-04-03T16:0029.77-54.373552.6CORVON60E408N72E34.00-5SSW, NLIGHT WINDSCLEAR000000030187
1794-04-04T16:0031.20-53.932882.6CORVON68E399N18E89.00-5S, WNWLIGHT WINDSA SWELL FROM THE WSWCLEAR000000030188
1794-04-05T16:0031.20-53.933331.0CORVON68E399N18E89.00-5S, NNWLIGHT AIRSCLOUDY WEATHER000000030189
1794-04-06T16:0033.87-52.581941.0CORVON71E364N19:30E184.00-9SSWLIGHT AIRSRAINCLOUDY WEATHER010000030190
1794-04-07T15:0035.90-50.252141.0CORVON76E321N40E183.00-11WNW, SWLIGHT AIRSCLOUDY WEATHER000000030191
1794-04-08T15:0038.67-47.38141CORVON85E255N37E226.00-17SSERAINCLOUDY WEATHER010000030192
1794-04-09T15:0041.62-44.181869.3LIZARDN73E655N39E230.00-17SSWFRESH BREEZESHAZY WEATHER000000030193
1794-04-10T15:0041.72-41.672079.3LIZARDN71:58E518N81E112.00-18VARIABLE, SWFRESH BREEZES AND HEAVY SQUALLSRAIN011000030194
1794-04-11T15:0042.40-40.52169.3LIZARDN72E412N64E69.00-18SWBS, NEBNFRESH BREEZES AND HEAVY SQUALLSRAINCLOUDY WEATHER010000030195
1794-04-12T14:0044.47-35.452029.3LIZARDN74E412N60E250.00-23W, SWFRESH BREEZES AND HEAVY SQUALLSCLOUDY WEATHER000000030196
1794-04-13T14:0046.35-31.882589.3LIZARDN78E350N52E187.00-23WBNFRESH BREEZES AND HEAVY SQUALLSRAINCLOUDY WEATHER010000030197
1794-04-14T14:0047.98-28.252889.3LIZARDN82E294N58E185.00-27NWFRESH BREEZESCLOUDY000000030198
1794-04-15T14:0049.47-23.032666.7LIZARDN87E206N68E230.00-27WNWMODERATECLOUDY000000030199
1794-04-16T13:0049.47-16.872679.3LIZARDN86E140E244.00-26SSW, WNWFRESH BREEZESRAIN010000030200
1794-04-17T13:0049.27-11.071789.3LIZARDN80E68S87E228.00-25SSWFRESH BREEZESCLOUDY000000030201
1794-04-18T13:0049.95-10.1815519.0LIZARDN80E15N78E200.00-25SE, SFRESH GALESHAZY WEATHER000000030202