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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 SENEGAL cruise from Sandy Hook to Cape Cod started at 1768-06-20 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752091, 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: 42.610714 * Median Longitude: -66.392143 * South-bound Latitude: 40.280000 * West-bound Longitude: -73.000000 * North-bound Latitude: 44.000000 * East-bound Longitude: -62.330000
Date/Time Start: 1768-06-20T17:00:00 * Date/Time End: 1768-07-06T16:00:00
Event(s):
Senegal_17680620_NMM_ADM/L/S225 * Latitude Start: 40.280000 * Longitude Start: -73.000000 * Latitude End: 42.000000 * Longitude End: -62.830000 * Date/Time Start: 1768-06-20T00:00:00 * Date/Time End: 1768-07-06T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Senegal (Sloop), Voyage: Sandy Hook - Cape Cod, 1st Observer: Thomas Cookson (Captain), 2nd Observer: Jeremiah Bigg (1st Officer/Master), Company: Royal Navy, Other ship information: 14G 283BM
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 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)

-
(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 
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)
1768-06-20T17:0040.28-73.00362SANDY HOOKW1/2N12ESE1/2S40.00-4VARIABLELAND AND SEA BREEZESHAZY0000000234670
1768-06-21T17:0040.33-70.201522.6SANDY HOOKN89W57EBS136.00-6SW-SSELIGHT BREEZESCLEAR0000000234671
1768-06-22T17:0041.00-67.902539.3SANDY HOOKWBS111EBN163.00-6S-WBSFRESH BREEZESFOGGY0010000234672
1768-06-23T16:0042.83-64.832466.7SANDY HOOKWSW154ENE131.00-13S-WBSMODERATEFOGGY0010000234673
1768-06-24T16:0043.75-63.752576.7SANDY HOOKSWBW200N33:45E106.00-13WNW, WMODERATEFOGGY0010000234674
1768-06-25T00:002259.3HALIFAXSWFRESH BREEZESHAZY0000000234675
1768-06-26T00:0031519.0SAMBRO HEADWSW31SWBW, NWFRESH GALESHAZY0000000234676
1768-06-27T00:0044.003629.3CAPE SAMBRON10S30.00VARIABLEFRESH BREEZESRAIN0100000234677
1768-06-28T16:0043.67-64.332126.7SAMBRON33E20S58W38.00-13SWMODERATE BREEZESFOGGY0010000234678
1768-06-29T16:0043.38-64.712129.3SAMBRON36E28S55W30.00-13SWFRESH BREEZESFOGGY0010000234679
1768-06-30T16:0043.62-65.012576.7SAMBRON19W26S23W69.00-13SW-WMORE MODERATEHAZY0000000234680
1768-07-01T16:0043.07-65.872462.6CAPE SABLEN14E16N55W47.00-13WBN-WBSLIGHT BREEZESCLEAR0000000234681
1768-07-02T16:0043.42-67.322466.7SABLEN70E29WBN64.00-13WBN-WBSMODERATEFAIR0000000234682
1768-07-03T17:0043.27-68.482252.6CAPE ANNN76W29W52.00-11S-SWBWLIGHT BREEZESFOGGY0010000234683
1768-07-04T17:0041.93-68.93362CAPE ANNN53W27S14W80.00-6VARIABLEVARIABLETHICK HAZY0000000234684
1768-07-05T16:0044.00-62.33362CAPE CODNW29S39E44.00-15VARIABLEVARIABLELARGE S SWELLTHICK HAZY0000000234685
1768-07-06T16:0042.00-62.83362CAPE CODWNW15S26W78.00-8VARIABLEVARIABLELARGE S SWELLTHICK HAZY0000000234686