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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 Java Head to Uk started at 1750-01-01 [dataset]. British Library, London, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747069, 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: -23.599868 * Median Longitude: 31.087368 * South-bound Latitude: -37.580000 * West-bound Longitude: -19.790000 * North-bound Latitude: -1.130000 * East-bound Longitude: 94.540000
Event(s):
Somerset_17500101_BL_L/MAR/B/626D * Latitude Start: -6.070000 * Longitude Start: 105.770000 * Latitude End: 49.450000 * Longitude End: -5.630000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Somerset, Start of voyage: 1750-01-12, End of voyage: 1750-04-11, Voyage: Java Head - Uk, 1st Observer: Thomas Tolson (Captain), Company: EIC
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Date/time startDate/time start
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:
1331 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/time start

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)
1750-01-12T06:00-16.1594.549819.0NBS1/4S148.00-3SSE, ESE, EBSFRESH GALESSMOOTH WATERFAIR PLEASANT0000000237617
1750-01-13T06:00-16.5392.44762.6NBS1/4S125.00-3SSE, ESE, S, EBS, EBNFIRST AND MIDDLE FRESH GALES, LATTER LIGHT BREEZES AND VARIABLEFAIR0000000237618
1750-01-14T06:00-16.9590.33762.6NBS1/4S125.00-3SSE, SE, EBN, ENE, EBNFIRST AND MIDDLE FAIR, LATTER LIGHT BREEZESRAINFAIR0100000237619
1750-01-15T06:00-17.6787.569619.0NBS1/4S159.00-5ESE, SE, SEBS, EBSFRESH GALESRAINMOSTLY FAIR0100000237620
1750-01-16T06:00-17.9284.9113019.0N1/2S152.00-5SEBE, EBS, ESE, E, SEFRESH GALESPLEASANT SHOWERS OF RAIN1100000237621
1750-01-17T06:00-18.1082.51969.3S86W137.00-5E, NE, E, EBSPLEASANT GALESFAIR0000000237622
1750-01-18T07:00-18.2080.6110815.4S86W109.00-5E, ESE, E, ESEMODERATE GALESFAIR PLEASANT0000000237623
1750-01-19T07:00-18.3778.141089.3S86W141.00-5ESEPLEASANT GALESFAIR0000000237624
1750-01-20T07:00-18.4575.7411815.4S86W137.00-6ESE, SEBEMODERATE GALESFAIR PLEASANT0000000237625
1750-01-21T07:00-18.6373.16959.3W1/2S147.00-6ESBE, SE, EBS, SEBE, EBSFINE PLEASANT TRADEFAIR0000000237626
1750-01-22T07:00-19.2770.73829.3S74W144.00-8SEBE, ESE, EPLEASANT GALESFAIR0000000237627
1750-01-23T07:00-19.5268.5311615.4S83W126.00-8SEBEMODERATE GALESSMOOTH WATERFAIR0000000237628
1750-01-24T08:00-20.2765.891139.3S80W151.00-11SEBEFINE PLEASANT TRADEFAIR0000000237629
1750-01-25T08:00-20.7363.331029.3WBS148.00-11SEBE, ESEFINE PLEASANT TRADEFAIR0000000237630
1750-01-26T08:00-21.5360.99879.3WSW141.00-14SEBE, EBSFINE PLEASANT TRADEFAIR0000000237631
1750-01-27T08:00-22.6259.2611915.4SW3/4W120.00-16ESE, SE, SSE, SEMODERATE GALESMOSTLY FAIR0000000237632
1750-01-28T08:00-23.7257.588515.4S43W137.00-16SE, SEBS, SSE, SE, EBSMODERATE GALESFAIR0000000237633
1750-01-29T08:00-25.5756.269415.4SWBS129.00-19ESE, SE, ESEMODERATE GALESLARGE SOUTHERLY SWELLFAIR0000000237634
1750-01-30T08:00-27.3755.0610519.0S32W121.00-19ESE, SE, SEBEFIRST PART LIGHT BREEZES, MIDDLE AND LATTER FRESH GALESGREAT DEAL OF LIGHTNING IN THE NIGHT0000100237635
1750-01-31T08:00-28.1553.366915.4SWBW1/4W105.00-21EMODERATE GALESFAIR PLEASANT0000000237636
1750-02-01T09:00-29.1351.4610115.4S57W119.00-23EBN, NEBE, ESE, SEBS, SEBEMODERATE GALESLARGE SWELL FROM SWFAIR0000000237637
1750-02-02T09:00-30.0249.4814619.0WSW1/2S117.00-23SSE, SBEFRESH GALESLARGE SWELL FROM SWFAIR0000000237638
1750-02-03T09:00-30.5048.29456.7S66W67.00-23SBE, CALM, E, ENEFIRST AND LATTER MODERATE,MIDDLE LIGHT AIRS AND CALMLARGE SWELL FROM SWFAIR0000000237639
1750-02-04T09:00-31.4347.2324619.0S48W93.00-24NE, NWBW, WBN, NWBW, WFRESH GALES AND FREQUENT SQUALLSRAIN0100000237640
1750-02-05T09:00-31.9846.7130226.8SWBS58.00-24NNW, NNW, NBW, N, NWBNHARD GALES AND HEAVY SQUALLSSMALL RAINLARGE SEA0100000237641
1750-02-06T09:00-31.9046.3121222.6W52.00-24NW, NNW, W, WBS, SWBWSTRONG GALESSEA SOMETHING ABATEDFIRST FAIR, MIDDLE AND LATTER CLOUDY0000000237642
1750-02-07T09:00-32.0044.78892.6W1/4S87.00-24SSW, SSE, EBN, ESEFIRST PLEASANT GALES, MIDDLE AND LATTER LIGHT BREEZESCLOUDY0000000237643
1750-02-08T09:00-32.1842.813594.6W1/4S100.00-24SE, E, NNELIGHT GALESSMOOTH WATERFAIR PLEASANT0000000237644
1750-02-09T09:00-32.0342.292111.0WBN27.00-25NNE, N, NBW, SWBWFIRST MODERATE GALES, MIDDLE AND LATTER LIGHT AIRS AND CALMCLOUDY0000000237645
1750-02-10T09:00-31.7341.531781.0WBN1/2N41.00-25SWBW, SW, SWBS, SSWLIGHT AIRSLARGE SWELL FROM THE SWMOSTLY FAIR0000000237646
1750-02-11T09:00-32.4039.816515.4S66W96.00-25SW, SWBW, EBS, EMODERATE GALESLARGE SWELL FROM THE SWFAIR0000000237647
1750-02-12T10:00-33.5536.842119.0WSW162.00-24E, EBN, NEFRESH GALESRAINCLOUDY HAZY WEATHER0100000237648
1750-02-13T10:00-34.2834.3613419.0WBS3/4S133.00-24NBE, N, W, S, SSEFRESH GALESRAINCLOUDY, LATTER THICK AND HAZY0100000237649
1750-02-14T10:00-35.0530.914519.0S78W175.00-23EBS, SSE, EBS, E, ENEFRESH GALESRAINTHICK CLOUDY0100000a trivial correction was made in this observation237650
1750-02-15T10:00-35.2529.01326S86W108.00-23NEBN, NNE, N, NNW, NBWSQUALLS AND FRESH GALESRAINLARGE SWELLCLOUDY0100000237651
1750-02-16T10:00-34.6829.0122526.8N56.00-23W, SWBW, WBS, WBN, W, WSWFORMER FRESH GALES, MIDDLE AND LATTER HARD GALES, WITH HEAVY SQUALLSSMALL RAINLARGE SEA0100000237652
1750-02-17T10:00-34.5329.383612.6N78E17.00-23WSW, SW, SWBW, WSW, CALMFORMER HARD GALES, MID AND LATTER LIGHT BREEZESLARGE SWELL0000000237653
1750-02-18T10:00-35.1529.1930319.0SBW1/2W34.00-23CALM, W, WSW, NNW, NWBNFIRST PART LIGHT AIRS AND CALM, LATTER FRESH GALESFAIR0000000237654
1750-02-19T10:00-35.3229.142471.0SSW3/4W38.00-23WBN, NBS, SW, WSW, WBS, WFIRST FRESH GALES, MIDDLE AND LATTER LIGHT AIRS AND CALMLARGE SWELLCLOUDY0000000237655
1750-02-20T10:00-35.9226.1328326.8S83W153.00-21CALM, EBN, ENE, N, NWBWFIRST LIGHT BREEZES, MID AND LATTER HARD GALESLARGE SWELL FROM SFIRST FAIR, MID AND LATTER HAZY0000000237656
1750-02-21T10:00-35.8026.132272.6N38.00-21WSW, WBN, NBS, SWBW, WSWFIRST FRESH GALES, MID AND LATTER LIGHT BREEZESHAZY0000000237657
1750-02-22T10:00-36.0026.061481.0WSW7.00-21CALM, SSW, SEBE, WNW, SBELIGHT AIRS AND CALMLARGE SWELL FROM STARBOARDCLOUDY0000000237658
1750-02-23T10:00-35.4525.8128319.0NNW61.00-21SSW, WSW, W, WBN, NWBWFRESH GALESLARGE SWELLFAIR0000000237659
1750-02-24T10:00-36.2225.8630519.0S4E34.00-21WNW, W, SWBW, WNW, NWBNFRESH GALESLARGE SWELL FROM SWFAIR0000000237660
1750-02-25T10:00-37.5826.0219426.8S40E11.00-20NWBN, SW, W, SW, SWBSHARD GALESRAINFIRST FAIR, MIDDLE AND LATTER CLOUDY0100000237661
1750-02-26T10:00-37.3025.601822.6NWBN22.00-21SW, SSW, CALM, WBN, SSWLIGHT BREEZES AND CALMSMALL RAINTHICK CLOUDY0100000237662
1750-02-27T10:00-36.7023.4410315.4WBN1/2N103.00-21SSW, WSW, SBE, SEBEMODERATE GALESSMALL RAINCLOUDY0100000237663
1750-02-28T11:00-35.8320.891279.3N69W122.00-19SE, SEBE, ESE, SEBE, SEBSPLEASANT GALESFAIR0000000237664
1750-03-03T11:00-30.4015.7014119.0NWBN162.00-17S, SSEFRESH GALESFAIR0000000237665
1750-03-04T11:00-28.8214.471864.6NNW3/4W103.00-17SSE, SEBS, SBW, SSWGENTLE GALESS SWELLCLOUDY0000000237666
1750-03-05T11:00-27.4313.361852.6NNW3/4W93.00-18S, SSWLIGHT BREEZESFINE PLEASANT0000000237667
1750-03-06T11:00-26.1012.251192.6NNW3/4W93.00-16SSE, SBN, SSE, SELIGHT BREEZESFAIR PLEASANT0000000237668
1750-03-07T11:00-24.6711.0614215.4NNW3/4W104.00-16SSEMODERATE GALESFAIR PLEASANT0000000237669
1750-03-08T11:00-23.109.7813015.4NNW3/4W112.00-16SE, SSE, SSW, SBE, SSE, SEBSMODERATE GALESSMALL RAINFIRST FAIR, MIDDLE AND LATTER CLOUDY0100000237670
1750-03-09T11:00-21.038.2411919.0NNW3/4W144.00-16SSE, SEFRESH GALESTHICK CLOUDY0000000237671
1750-03-10T12:00-19.226.6612119.0NNW3/4W149.00-14SEBS, SEFRESH GALESSMALL RAINTHICK CLOUDY0100000237672
1750-03-11T12:00-17.725.431444.6NNW3/4W112.00-14SEBS, E, ESE, ENE, ESE, SSELIGHT GALESSMALL RAINFIRST AND LATTER FAIR, MID CLOUDY0100000237673
1750-03-12T12:00-16.504.56154NNW3/4W74.00-15SEBS, SEBE, SSE, ENE, SBEFIRST AND MIDDLE LIGHT BREEZES, LATTER UNCERTAINCLOUDY THEN UNCERTAIN0000000237674
1750-03-13T12:00-16.223.55981.0N75W50.00-15EBN, ESE, SE, ESELIGHT AIRSS SWELLFAIR0000000237675
1750-03-14T12:00-16.032.471221.0N85W50.00-13ESE, SELIGHT AIRSFAIR0000000237676
1750-03-15T12:00-16.101.021452.6W1/2S71.00-13SE, SSE, S, SSELIGHT BREEZESFAIR PLEASANT0000000237677
1750-03-16T12:00-15.87-0.951674.6S88W102.00-13SGENTLE GALESSMOOTH WATERFAIR PLEASANT0000000237678
1750-03-17T12:00-15.90-1.962121.0W1/4S46.00-13SBE, SEBS, SSE, SE, SSW, SWLIGHT AIRSVARIABLE AND FAIR0000000237679
1750-03-18T12:00-16.02-3.8414719.0W3/4S98.00-11S, SBW, SSW, SSE, SEBS, SSEFORMER LIGHT AIRS, RESIDUE FRESH GALESFAIR0000000237680
1750-03-19T12:00-15.93-5.0013519.0ST HELENAW72N- WNW763.00-11SE, SSE, SEBE, SE, SSE, SEBSFRESH GALESFAIR0000000237681
1750-04-01T13:00-15.07-7.9213815.4N44W96.00-8SE, ESE, SE, SEBSMODERATE GALESCLOUDY0000000237682
1750-04-02T13:00-13.58-9.524815.4N43W130.00-8SEBS, NE, ESE, SE, ENE, NEBEMODERATE GALESSMALL RAINFIRSTAND MIDDLE FAIR, LATTER CLOUDY0100000237683
1750-04-03T13:00-12.37-10.8514915.4N43W107.00-9SE, SEBS, SSEMODERATE GALESFIRST AND MIDDLE CLOUDY, LATTER FAIR0000000237684
1750-04-04T13:00-11.18-12.231269.3N43W112.00-9SEPLEASANT GALESFAIR0000000237685
1750-04-05T13:00-10.28-13.6712815.4NW1/4W108.00-7SEMODERATE GALESFAIR PLEASANT0000000237686
1750-04-06T13:00-8.38-15.098319.0N36W150.00-7SE, ESE, EFRESH GALESFAIR PLEASANT0000000237687
1750-04-07T13:00-6.68-16.341389.3ASCENCIONNE1/2N4N46W127.00-8E, SEBS, ESE, SEBSPLEASANT GALESFAIR0000000237688
1750-04-08T13:00-5.45-17.021389.3N41W108.00-8SEBSPLEASANT GALESFAIR0000000237689
1750-04-09T13:00-4.25-18.1013015.4N40W101.00-5SEBS, SEMODERATE GALESCLOUDY0000000237690
1750-04-10T13:00-2.53-19.041419.3NNW1/2W119.00-5SE, SEBE, ESE, SEBSPLEASANT TRADEFAIR0000000237691
1750-04-11T13:00-1.13-19.791074.6NNW1/2W95.00-6SE, ESELIGHT GALESRAINFIRST FAIR, MIDDLE AND LATTER CLOUDY0100000237692