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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 to New York started at 1777-04-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752157, 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: 40.320556 * Median Longitude: -35.597593 * South-bound Latitude: 36.120000 * West-bound Longitude: -73.500000 * North-bound Latitude: 49.670000 * East-bound Longitude: -5.710000
Date/Time Start: 1777-04-08T00:00:00 * Date/Time End: 1777-06-03T00:00:00
Event(s):
Somerset_17770408_NMM_ADM/L/S223 * Latitude Start: 49.450000 * Longitude Start: -5.630000 * Latitude End: 40.670000 * Longitude End: -74.040000 * Date/Time Start: 1777-04-08T00:00:00 * Date/Time End: 1777-06-03T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Somerset (3rd Rate Frigate), Voyage: Uk - New York, 1st Observer: George Ourry (Captain), 2nd Observer: John Burrows (1st Officer/Master), 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
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 CourseCourseCourse of the ship during the past 24 hours
11 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
12 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.
13 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.
14 Wind force descriptionWind force descrAll reported wind forces on this day
15 Precipitation descriptionPrecip 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:
1054 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)

-
(1 If position is considered t...)
10 
Course
(Course of the ship during the...)
11 
Distance [arbitrary units]
(Distance travelled during the...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Wind force descr
(All reported wind forces on t...)
15 
Precip 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)
1777-04-08T00:002819.3START POINTNNE31SEBS, ESE, WBNFRESH BREEZESCLOUDY0000000237693
1777-04-09T12:0049.25-5.719119.0LIZARDN65W33S65W98.00-22EBN, ESEFRESH GALES0000000a trivial correction was made in this observation237694
1777-04-10T13:0048.85-7.7536219.0LIZARDN68E59S73W83.00-23ESE, VARIABLEFRESH GALES AND SQUALLY0000000237695
1777-04-11T13:0049.15-8.912479.3LIZARDN77E71N70W52.00-23WFRESH BREEZESCLOUDY0000000237696
1777-04-12T13:0049.67-8.9124722.6LIZARDN85E68N47.00-23WSTRONG GALES AND SQUALLYFOGGY0010000237697
1777-04-13T13:0048.97-9.032479.3LIZARDN74E71S6W42.00-23WFRESH BREEZESCLOUDY0000000237698
1777-04-14T13:0047.87-10.91671.0LIZARDN67E107S50W99.00-23ELIGHT AIRSFAIR0000000237699
1777-04-15T13:0046.37-13.431599.3LIZARDN61E149S51W142.00-21SFRESH BREEZESCLOUDY0000000237700
1777-04-16T13:0046.10-15.4820419.0LIZARDN64:24E176S78W88.00-21SWFRESH GALES0000000237701
1777-04-17T13:0045.87-16.75699.3LIZARDN63:21E197S57W62.00-21EFRESH BREEZESCLOUDY0000000237702
1777-04-18T13:0045.25-17.633620.0LIZARDN63E211S65W41.00-21VARIABLECALMFAIR0000000237703
1777-04-19T13:0044.72-17.853629.3LIZARDN62E224S17W33.00-21VARIABLEFRESH BREEZESCLOUDY0000000237704
1777-04-20T13:0045.27-18.7115919.0LIZARDN66E230N49W49.00-21SFRESH GALESCLOUDY0000000237705
1777-04-21T13:0044.53-18.032490.0LIZARDN62E231S33E53.00-21WCALMRAINHAZY0100000237706
1777-04-22T13:0043.53-17.782499.3LIZARDN57E235S10E61.00-21WFRESH BREEZESCLOUDY0000000237707
1777-04-23T13:0042.03-17.783629.3LIZARDN51E254S90.00-19VARIABLEFRESH BREEZESCLOUDY0000000237708
1777-04-24T13:0041.43-17.783626.7LIZARDN49E262S36.00-19VARIABLEMODERATE BREEZESCLOUDY0000000237709
1777-04-25T13:0040.95-20.631161.0LIZARDN52E297S78W116.00-19SELIGHT AIRS0000000237710
1777-04-26T14:0041.15-22.852072.6LIZARDN57E321S83W101.00-18SWLIGHT BREEZESCLOUDY0000000237711
1777-04-28T14:0041.18-24.563621.0LIZARDN59E342S83W52.00-18VARIABLELIGHT AIRSFAIR0000000237712
1777-04-29T14:0040.15-25.6836219.0LIZARDN58E365S35W77.00-18VARIABLEFRESH GALESCLOUDY0000000237713
1777-04-30T14:0039.97-25.983626.7LIZARDN57E372S45W16.00-18VARIABLEMODERATE BREEZESCLOUDY0000000237714
1777-05-01T14:0039.67-26.213629.3LIZARDN57E372S32W21.00-18VARIABLEFRESH BREEZESCLOUDY0000000237715
1777-05-02T14:0038.33-26.402529.3LIZARDN57E395S1/2W81.00-18WFRESH BREEZESCLOUDY0000000237716
1777-05-03T14:0036.75-25.112999.3ST MICHAELN14W22S14E67.00-16NWFRESH BREEZESCLOUDY0000000237717
1777-05-04T14:0036.95-25.673626.7ST MICHAELN38S20W52.00-16VARIABLEMODERATE BREEZECLEAR0000000237718
1777-05-05T14:0036.35-27.031649.3ST MICHAELN40E39N67W80.00-16SFRESH BREEZESCLEAR0000000237719
1777-05-06T14:0036.82-28.691666.7ST MICHAELN64E59N72W89.00-14SMODERATECLOUDY0000000237720
1777-05-07T14:0036.95-31.071666.7ST MICHAELN73E81N84W72.00-14SMODERATEFAIR0000000237721
1777-05-08T14:0036.12-30.892111.0ST MICHAELN62E88S83E50.00-14SWLIGHT AIRSFAIR0000000237722
1777-05-09T14:0036.13-32.282111.0ST MICHAELN69E108S88W64.00-14SWLIGHT AIRSFAIR0000000237723
1777-05-10T14:0036.53-34.251679.3ST MICHAELN76E152N76W104.00-13SFRESH BREEZESCLOUDY0000000237724
1777-05-11T14:0036.50-36.013629.3ST MICHAELN80E180N86W89.00-13VARIABLEFRESH BREEZESCLOUDY0000000237725
1777-05-12T15:0036.87-38.163499.3ST MICHAELN83E215N82W109.00-11NFRESH BREEZESCLOUDY0000000237726
1777-05-13T15:0036.87-39.77796.7ST MICHAELN83E242W83.00-11EMODERATE BREEZESCLOUDY0000000237727
1777-05-14T15:0037.03-41.72349.3ST MICHAELN84E276N84W98.00-11NEFRESH BREEZESCLEAR0000000237728
1777-05-15T15:0036.88-43.563626.7ST MICHAELN85E287S84W94.00-10VARIABLEMODERATECLEAR0000000237729
1777-05-16T15:0037.02-45.191251.0ST MICHAELN85E335S84W84.00-10SELIGHT AIRSFAIR0000000237730
1777-05-17T15:0036.73-47.511279.3ST MICHAELN86E374S82W118.00-8SEFRESH BREEZESFAIR0000000237731
1777-05-18T15:0036.93-50.101276.7ST MICHAELN85E415N86W130.00-8SEMODERATE BREEZESCLOUDY0000000237732
1777-05-19T15:0036.93-52.401276.7ST MICHAELN85E455W115.00-8SEMODERATE BREEZESCLOUDY0000000237733
1777-05-20T16:0037.00-54.7412819.0ST MICHAELN85E494W1/4N118.00-7SEFRESH GALESCLEAR0000000237734
1777-05-21T16:0037.58-57.271699.3ST MICHAELN88E525WBN1/2N130.00-11SFRESH BREEZESCLEAR0000000237735
1777-05-22T16:0037.58-58.701706.7ST MICHAELN88E550W74.00-10SMODERATE BREEZESCLEAR0000000237736
1777-05-23T16:0039.48-60.353629.3ST MICHAELN86E578N86W84.00-10VARIABLEFRESH BREEZESCLEAR0000000237737
1777-05-24T16:0038.10-61.483506.7ST MICHAELE597N64W82.00-10NMODERATE BREEZESCLOUDY0000000237738
1777-05-25T16:0037.05-61.382640.0ST MICHAELN88E606S63.00-6WCALMCLEAR0000000237739
1777-05-26T16:0037.63-61.663629.3ST MICHAELE603N27W39.00-10VARIABLEFRESH BREEZESCLEAR0000000237740
1777-05-27T16:0037.82-62.742176.7ST MICHAELE622N79W57.00-8SWMODERATE BREEZESFAIR0000000237741
1777-05-28T16:0037.80-64.873629.3ST MICHAELE657W106.00-8VARIABLEFRESH BREEZES0000000237742
1777-05-29T17:0038.08-68.4336222.6ST MICHAELE715N5W175.00-6VARIABLESTRONG GALES AND SQUALLY0000000237743
1777-05-30T17:0038.18-70.383099.3ST MICHAELE748N86W108.00-6NWFRESH BREEZESCLOUDY0000000237744
1777-05-31T17:0037.82-70.963621.0ST MICHAELE765S60W44.00-6VARIABLELIGHT AIRSFAIR0000000237745
1777-06-01T17:0038.77-71.652649.3NEW YORK44N33W70.00-6WFRESH BREEZESCLEAR0000000237746
1777-06-02T17:0039.80-73.501776.7NEW YORKN47E39N59W107.00-3SMODERATEFAIR0000000237747
1777-06-03T00:001801.0NEW YORKNW4SLIGHT AIRSFAIR0000000237748