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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 SWALLOW cruise from Cherebon Road to River Banjor started at 1750-10-23 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747095, 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: -3.931944 * Median Longitude: 113.247222 * South-bound Latitude: -5.550000 * West-bound Longitude: 109.040000 * North-bound Latitude: -3.520000 * East-bound Longitude: 114.480000
Event(s):
Swallow_17501023_NMM_ADM/L/S567 * Latitude Start: -6.700000 * Longitude Start: 108.600000 * Latitude End: -3.520000 * Longitude End: 114.480000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Swallow (Sloop), Start of voyage: 1750-11-03, End of voyage: 1750-12-11, Voyage: Cherebon Road - River Banjor, 1st Observer: Henry Speke (Captain), 2nd Observer: John Kestell (1st Officer/Master), Company: Royal Navy, Other ship information: 10G 272BM
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
--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 Present weatherwwWeather description
16 Precipitation descriptionPrecip 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:
592 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)

-
(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 
ww
(Weather description)
16 
Precip 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)
1750-11-03T00:00-6.722486.7CHEREBON HILLWSW1/4SSBW, E, ESE, WSWMODERATECLOUDY0000000247723
1750-11-04T05:00-5.55109.042126.7CHEREBON FLAGSTAFFS21:48W25N21:48E76.00-2NNW, N, SBW, SWBSMODERATELATTER PART CLOUDYFAIR0000000247724
1750-11-05T05:00-5.17109.313360.0CHEREBON FLAGSTAFFS24:00W36N35:00E28.00-2SWBS, SSE, NNWLIGHT AIRS CALMSLATTER PART MODERATE AND CLOUDY0000000247725
1750-11-06T05:00-4.53109.94546.7CHEREBON FLAGSTAFFS31:00W53NE53.00-2NE, NEBEMODERATEFAIR0000000a trivial correction was made in this observation247726
1750-11-07T05:00-3.87109.961226.7CHEREBON FLAGSTAFFS34:00W73NE57.00-2SSE, SE, SEBEMODERATELATER PART SQUALLY WITH THUNDER LIGHTNINGRAINCLOUDY1100100247727
1750-11-08T05:00-3.55111.191116.7CHEREBON FLAGSTAFFS37:00W84NE1/2N25.00-2SEBE, SEBS, EBS, SE, ESEMODERATELATTER PART SQUALLYRAINCLOUDY0100000247728
1750-11-09T05:00-4.35111.0311119.0CHEREBON FLAGSTAFFS43:00W67SBW49.00-2EBS, NEBE, SE, ESEFRESH GALES AND SQUALLYFIRST AND MIDDLE PARTS THUNDER LIGHTNING. LATTER PART LIGHT AIRSRAIN0100100247729
1750-11-10T05:00-4.67111.291566.7CHEREBON FLAGSTAFFS51:00W69S41:00E25.00-2SEBE, SE, SEBS, SSEMODERATELATTER PART SQUALLYRAIN0100000247730
1750-11-11T05:00-4.78111.49111CHEREBON FLAGSTAFFS55:00W71S61:00E14.00-2NEBN, NNE, ESESQUALLYMIDDLE AND LATTER PART MODERATE AND CLOUDYRAIN0100000247731
1750-11-12T05:00-4.65111.691110.0CHEREBON FLAGSTAFFS55:00W75NEBE14.00-2NE, SE, ESECALMLATTER PART SQUALLYHAZY0000000247732
1750-11-13T05:00-4.12112.261116.7CHEREBON FLAGSTAFFS54:00W91N47:00E46.00-2SEBE, ESEMODERATEFAIR0000000247733
1750-11-14T05:00-4.55112.38133CHEREBON FLAGSTAFFS59:00W88S15:00E27.00-2SEBS, SSE, SESQUALLYMIDDLE AND LATTER PARTS MODERATE AND CLOUDYFIRST PART SMALL RAIN0100000247734
1750-11-15T04:00-4.37112.811336.7CHEREBON FLAGSTAFFSWBW 1/4W98NEBE 3/4E27.00-2ESE, SEMODERATEFAIR0000000247735
1750-11-16T04:00-4.87113.011116.7CHEREBON FLAGSTAFFSWBW 1/2W100SSE32.00-2SE, SEBS, ESEMODERATETHUNDER AND LIGHTNINGCLOUDY0000100247736
1750-11-17T04:00-4.60113.53666.7CHEREBON FLAGSTAFFS65:00W107NEBE 1/2E35.00-2ESE, SE, NE, ENEMODERATELATTER PART SQUALLYRAINFAIR0100000247737
1750-11-18T04:00-4.00113.89167CHEREBON FLAGSTAFFSWBW 1/2W123NE 1/4N48.00-2EBS, ESE, SE, SBESQUALLYMIDDLE AND LATTER MODERATE AND FAIRRAIN0100000247738
1750-11-19T00:00-3.721011.0RIVER BANJORN 3/4E4SSE, SE, NE, EBSLIGHT AIRSRAINCLOUDY0100000247739
1750-11-20T00:001356.7RIVER BANJORSWBW, SSE, NNE, NE, SEMODERATEFAIR0000000247740
1750-11-21T04:00-3.52114.481-20000000247741
1750-11-22T04:00-3.52114.481-20000000247742
1750-11-23T04:00-3.52114.481-20000000247743
1750-11-24T04:00-3.52114.481-20000000247744
1750-11-25T04:00-3.52114.481-20000000247745
1750-11-26T04:00-3.52114.481-20000000247746
1750-11-27T04:00-3.52114.481-20000000247747
1750-11-28T04:00-3.52114.481-20000000247748
1750-11-29T04:00-3.52114.481-20000000247749
1750-11-30T04:00-3.52114.481-20000000247750
1750-12-01T04:00-3.52114.481-20000000247751
1750-12-02T04:00-3.52114.481-20000000247752
1750-12-03T04:00-3.52114.481-20000000247753
1750-12-04T04:00-3.52114.481-20000000247754
1750-12-05T04:00-3.52114.481-20000000247755
1750-12-06T04:00-3.52114.481-20000000247756
1750-12-07T04:00-3.52114.481-20000000247757
1750-12-08T04:00-3.52114.481-20000000247758
1750-12-09T04:00-3.52114.481-20000000247759
1750-12-10T04:00-3.52114.481-20000000247760
1750-12-11T04:00-3.52114.481-20000000247761