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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 DILIGENCE cruise from Cape Henry to Ashley River started at 1765-08-07 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.748525, 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: 34.531765 * Median Longitude: -75.072941 * South-bound Latitude: 32.520000 * West-bound Longitude: -78.030000 * North-bound Latitude: 36.680000 * East-bound Longitude: -72.950000
Date/Time Start: 1765-08-07T17:00:00 * Date/Time End: 1765-08-23T17:00:00
Event(s):
Diligence_17650807_NMM_ADM/L/D118 * Latitude Start: 37.350000 * Longitude Start: -74.930000 * Latitude End: 33.530000 * Longitude End: -77.820000 * Date/Time Start: 1765-08-07T00:00:00 * Date/Time End: 1765-08-23T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Diligence (Sloop), Voyage: Cape Henry - Ashley River, 1st Observer: Constantine Philips (Captain), 2nd Observer: Robert Calder (1st Officer/Master), Company: Royal Navy, Other ship information: 10G 230BM
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 IdentificationIDCLIWOC 2.1 line number
Size:
313 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 
ID
(CLIWOC 2.1 line number)
1765-08-07T17:0036.68-75.603156.7CAPE HENRYNW9SE27.000ESE, NWMODERATECLOUDY000000052841
1765-08-08T17:0036.14-75.241011.0CAPE HENRYN29E16SBE23.000WSW, EBSLIGHT AIRSCLOUDY000000052842
1765-08-09T17:0035.60-74.851011.0CAPE HENRYN34W34S37E53.000ESE, EBSLIGHT AIRSCLOUDY000000052843
1765-08-10T17:0035.07-73.423622.6CAPE HENRYN47W47N80E47.000NE, VARIABLELIGHT BREEZESCLEAR000000052844
1765-08-11T17:0034.93-74.353626.7CAPE HENRYN43W49N80E47.000NE, VARIABLEMODERATECLOUDY000000052845
1765-08-12T17:0035.43-73.6723619.0CAPE HENRY0SW, SWBWFRESH GALESCLOUDY000000052846
1765-08-13T17:0035.93-72.952591.0CAPE HENRYN47W76S13.000WSW, W, WBSLIGHT AIRSLIGHTNING IN NEHEAVY RAIN010010052847
1765-08-14T17:0034.07-73.322481.0CAPE HENRYN36W71NNW20.000WBS, WSWLIGHT AIRSCLOUDY000000052848
1765-08-15T17:0033.95-73.751919.3CAPE HENRYN31W71S22W23.000WBS, SBWFRESH BREEZESCLOUDY000000052849
1765-08-16T17:0033.35-75.33230.0CAPE HENRYN9W73WSW86.000CALM, NNELIGHT BREEZES, THEN CALMRAINCLOUDY010000052850
1765-08-17T17:0034.30-74.731692.6CAPE HENRYN21W54N29E62.000ENE, SBELIGHT BREEZESCLOUDY000000052851
1765-08-18T17:0034.10-75.621699.3CAPE HENRYN9W59N75W46.000SSW, SBEFRESH BREEZESCLOUDY000000052852
1765-08-19T17:0034.08-75.5019.0CAPE HENRY0FRESH GALESCLOUDY000000052853
1765-08-20T17:0034.07-75.353156.7CAPE HENRYN10E60N87W37.000SWBS, NWMODERATECLOUDY000000052854
1765-08-21T17:0033.29-76.71232.6CAPE FEARN40E240E, NNELIGHT BREEZESCLOUDY000000052855
1765-08-22T17:0032.52-78.033519.0CAPE FEARN46E8N63W94.001NE, EBN, NEBNFRESH GALESCLOUDY000000052856
1765-08-23T17:0033.53-77.82327CAPE FEARN47E41NE16.001NEBN, N, NWBWFRESH BREEZES, THEN SQUALLYRAINGREAT SEA FROM THE NW010000052857