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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 SOMERSET cruise from Halifax to Torbay started at 1776-01-15 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752156, 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: 43.905217 * Median Longitude: -39.489130 * South-bound Latitude: 40.670000 * West-bound Longitude: -62.210000 * North-bound Latitude: 49.480000 * East-bound Longitude: -6.330000
Date/Time Start: 1776-01-15T16:00:00 * Date/Time End: 1776-02-06T12:00:00
Event(s):
Somerset_17760115_NMM_ADM/L/S411 * Latitude Start: 43.400000 * Longitude Start: -63.030000 * Latitude End: 50.437000 * Longitude End: -3.528000 * Date/Time Start: 1776-01-15T00:00:00 * Date/Time End: 1776-02-06T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Somerset (3rd Rate Frigate), Voyage: Halifax - Torbay, 1st Observer: Edward Lecras (Captain), Company: Royal Navy, Other ship information: 70G 1414BM
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:
429 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)
1776-01-15T16:0042.43-62.212949.3CAPE SAMBRON24:56W47S24:56E142.00-10NW, NWBWFRESH BREEZESFAIR0000000237801
1776-01-16T16:0042.33-61.181596.7CAPE SAMBRON37:45W56S82:43E47.00-10NNW, WSW, SBEMODERATECLEAR0000000237802
1776-01-17T16:0042.03-59.911936.7CAPE SAMBRON46:22W73S72:28E59.00-10SSE, W, SSWMODERATE BREEZESCLOUDY0000000237803
1776-01-18T16:0041.70-58.31204CAPE SAMBRON48:38W87S74:20E74.00-10SE, NW, SEBE, SBW, SWBSTHUNDER AND LIGHTNINGRAINYHEAVY SQUALLS0100100237804
1776-01-19T16:0041.83-56.7312426.8CAPE SAMBRON61:11W114N80:23E70.00-11SEBE, SEHARD GALESCLEAR0000000237805
1776-01-20T16:0042.00-54.70906.7CAPE SAMBRON67:08W133N82:23E75.00-11EBS, E, EBSMODERATE BREEZESRAIN0100000237806
1776-01-21T16:0041.38-54.5312CAPE SAMBRON64:14W147S38.05E47.00-11NNE, NBW, NNECLOUDY0000000237807
1776-01-22T16:0040.67-53.412036.7CAPE SAMBRON63:04WS50:21E67.00-11SSW, SW, SSW, SWBSMODERATE BREEZESTHICK0000000237808
1776-01-23T15:0041.42-50.7022419.0CAPE SAMBRON72:43W200N67:44E137.00-12SWBW, SSW, SWBWFRESH GALESRAIN0100000237809
1776-01-24T15:0041.10-46.3822322.6CAPE SAMBRON72:43W158S84:23E186.00-13SWBWSTRONG GALES WITH HEAVY SQUALLSLARGE SEA FROM THE W0000000237810
1776-01-25T15:0041.27-43.20268CAPE SAMBRON79:04W302N86:06E147.00-13WBNCLOUDY0000000237811
1776-01-26T15:0041.20-41.63422.6CAPE SAMBRON78:08W329S86:57E75.00-14NEBELITTLE WINDRAIN0100000237812
1776-01-27T15:0041.95-39.30319.3CAPE SAMBRON81:32W357N66:48E114.00-14NBW, NEFRESH BREEZESFAIR0000000237813
1776-01-28T14:0042.47-36.102552.6CAPE SAMBRON83:57W401N77:40E145.00-15WBS, WSW, WLITTLE WINDTHICK0000000237814
1776-01-29T14:0043.45-32.062509.3CAPE SAMBRON87:20W487N70:06E173.00-20NWBW, WNW, WFRESH BREEZESCLOUDY0000000237815
1776-01-30T14:0044.38-29.9520526.8CAPE SAMBRON89:00W495N60:17E105.00-20WNW, W, SWHARD GALESCLOUDY0000000a trivial correction was made in this observation237816
1776-01-31T14:0045.52-27.8826126.8CAPE SAMBRON87:53W505N52:43E110.00-20NBW, NWBN, WBNHARD GALES0000000237817
1776-02-01T14:0047.00-25.1131819.0SAMBRON77:24W270N52:01E142.00-20WBN, SW, NW, NNWFRESH GALESCLOUDY0000000237818
1776-02-02T14:0048.42-22.5625819.0SAMBROS81:43W532NE1/2E132.00-23WBN, WSW, WBNFRESH GALES0000000237819
1776-02-03T13:0049.23-19.632369.3SAMBROS81:13W608N67:48E129.00-23WBN, WSW, WBSFRESH BREEZES0000000a trivial correction was made in this observation237820
1776-02-04T13:0049.33-15.6122519.0SAMBRON82:01W644N87:52E161.00-23W, SW, SSWBS, SSW, WSWFRESH GALES0000000237821
1776-02-05T13:0049.23-10.8324722.6SAMBROS81:46W749S88:14E195.00-23WSTRONG GALES AND SQUALLY0000000237822
1776-02-06T12:0049.48-6.3322622.6SAMBROS82:56W786N86:24E191.00-22SWBW, WSWSTRONG GALESGREAT SWELL0000000237823