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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 Cape Lahabe started at 1764-05-27 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.748524, 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: 39.176923 * Median Longitude: -69.907692 * South-bound Latitude: 36.720000 * West-bound Longitude: -74.930000 * North-bound Latitude: 42.450000 * East-bound Longitude: -64.100000
Date/Time Start: 1764-05-27T17:00:00 * Date/Time End: 1764-06-09T00:00:00
Event(s):
Diligence_17640527_NMM_ADM/L/D118 * Latitude: 37.350000 * Longitude: -74.930000 * Date/Time Start: 1764-05-27T00:00:00 * Date/Time End: 1764-06-09T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Diligence (Sloop), Voyage: Cape Henry - Cape Lahabe, 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
--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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
15 Wind force descriptionWind force descrAll reported wind forces on this day
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 IdentificationIDCLIWOC 2.1 line number
Size:
263 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 
Cur dir descr
(Direction of the current. Thi...)
15 
Wind force descr
(All reported wind forces on t...)
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 
ID
(CLIWOC 2.1 line number)
1764-05-27T17:0037.35-74.93341.0CAPE HENRYWNW18ENE54.000SSE, NEBNLIGHT AIRSCLOUDY000000052827
1764-05-28T17:0036.72-73.85689.3CAPE HENRYN80W35S64E64.000NBE, NE, ENEFRESH BREEZESFOGGY000000052828
1764-05-29T17:0037.00-73.331246.7CAPE HENRYW43NEBE30.000NEBE, SEBEMODERATECLEAR000000052829
1764-05-30T17:0037.60-72.70154CAPE HENRYS77W54NE1/2N47.00-4ESE, SSECLOSE CLOUDY000000052830
1764-05-31T17:0038.13-72.23621.0CAPE HENRYS69W63NEBN39.00-6SSE, SE, ENENONELIGHT AIRSRAIN010000052831
1764-06-01T17:0037.28-71.33432.6CAPE HENRYS86W74S58E67.00-2EBN, NELIGHT BREEZESCLOSE HAZY000000052832
1764-06-02T17:0038.42-71.33732.6CAPE HENRYS69W79N68.00-6EBS, SE, EBNLITTLE WINDSCLOUDY000000052833
1764-06-03T17:0039.78-69.9011819.0CAPE HENRYS60W111NE1/2N106.00-6SEBEFRESH GALESCLOUDY000000052834
1764-06-04T17:0040.07-68.631749.3CAPE HENRYS62W135N73E60.00-6SE, SSE, SFRESH BREEZESTHICK FOG000000052835
1764-06-05T16:0040.65-66.502859.3CAPE HENRYS64W164N70E103.00-8WSW, WNWFRESH BREEZESTHICK FOG000000052836
1764-06-06T16:0041.47-65.803306.7CAPE HENRYS61W183EBN57.00-8NWBN, NNWMODERATECLOUDY000000052837
1764-06-07T16:0042.38-64.173526.7CAPE HENRYS56W190N53E92.00-8NNW, NWBN, NMODERATECLEAR000000052838
1764-06-08T16:0042.45-64.1033019.0CAPE HENRYS55W190N37E5.00-8N, NBW, NNWFRESH GALESCLOUDY000000052839
1764-06-09T00:002486.7CAPE LAHABENBE21NW, W, WSWMODERATECLOUDY000000052840