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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 PRUDENT cruise from Sandy Hook to East River started at 1781-07-22 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751614, 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: 40.788800 * Median Longitude: -68.206800 * South-bound Latitude: 39.520000 * West-bound Longitude: -73.600000 * North-bound Latitude: 42.830000 * East-bound Longitude: -63.950000
Date/Time Start: 1781-07-22T17:00:00 * Date/Time End: 1781-08-15T17:00:00
Event(s):
Prudent_17810722_NMM_ADM/L/P446 * Latitude Start: 40.280000 * Longitude Start: -73.000000 * Latitude End: 39.900000 * Longitude End: -73.600000 * Date/Time Start: 1781-07-22T00:00:00 * Date/Time End: 1781-08-15T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Prudent (3rd Rate Frigate), Voyage: Sandy Hook - East River, 1st Observer: Thomas Burnett (Captain), 2nd Observer: Adoniah Schuyler (1st Officer/Master), Company: Royal Navy, Other ship information: 64G 1366BM
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 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 IdentificationIDCLIWOC 2.1 line number
Size:
449 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 
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 
ID
(CLIWOC 2.1 line number)
1781-07-22T17:0039.83-73.452332.6SANDY HOOKN51:45W16S51:46E48.00-3SWBW, W, SWBWLIGHT BREEZESCLEAR WEATHER0000000204540
1781-07-23T17:0040.03-72.20174SANDY HOOKN74:30W38N84E58.00-6SW-SPM LIGHT BREEZESPM HAZY WEATHER0000000204541
1781-07-24T17:0039.93-71.85264SANDY HOOKN73:50W39S67:30E17.00-6SSW, E, SSE, WPM MODERATE BREEZESPM HAZY WEATHER0000000204542
1781-07-25T17:0039.73-68.681972.6SANDY HOOKN80:20W88S85:20E146.00-6SW-SSWLIGHT BREEZESCLEAR WEATHER0000000204543
1781-07-26T16:0039.62-66.872519.3SANDY HOOKN81:30W117S85:20E85.00-8SSW-WBSFRESH BREEZESCLEAR WEATHER0000000204544
1781-07-27T16:0040.00-66.00602.6ST GEORGE BANK, SOUTH ENDN28:15W40N60:15E46.00-8WBS, NNW, NE, ENEPM LIGHT BREEZESPM HAZY WEATHER0000000204545
1781-07-28T16:0040.17-65.1348NANTUCKET SHOALS, SOUTHENDS82:20W50N76E42.00-8ENE-NEBEPM FRESH BREEZESPM HAZY WEATHER0000000204546
1781-07-29T16:0040.50-64.40330NANTUCKET SHOALS, SOUTHENDS77:40W70N52:30E33.00-8NEBE, NBW, NNWPM FRESH BREEZESPM HAZY WEATHER0000000204547
1781-07-30T16:0041.15-63.95150ST GEORGE BANK, SOUTH ENDS76:20W52N27E44.00-8NNW, WBN, SW, SSEPM FRESH BREEZES0010000204548
1781-07-31T16:0041.73-65.72240ST GEORGE BANK, SOUTH ENDN88:44W17N66:15W87.00-8SSE-WSWPM MODERATE BREEZESFAIR WEATHER0000000204549
1781-08-01T16:0042.38-66.4215CAPE CODDS84:10W37N38:30W50.00-8WSW-NNEPM LIGHT BREEZES0010000204550
1781-08-02T16:0042.80-67.4755CAPE SABLEN61W40N61:30W52.00-13NE, NNE, ENEPM LIGHT BREEZES0010000204551
1781-08-03T17:0042.83-68.70CAPE CODDS22W13S88:15W54.00-11PM LIGHT BREEZESINCLINABLE TO FOGG0010000204552
1781-08-04T17:0042.53-69.68CAPE ANNN38:30W31S66:00W47.00-11PM THICK FOGGY WEATHER0000000204553
1781-08-05T17:0042.45-68.82343CAPE ANNN65W16S82:30E40.00-6NBWPM LIGHT BREEZESCLEAR WEATHER0000000204554
1781-08-06T16:0042.32-67.28195CAPE ANNN76:00W38S83:20E70.00-8NBW-SSWPM LIGHT BREEZESTHICK FOGG0010000204555
1781-08-07T16:0041.15-66.122622.6ST GEORGE BANK, SOUTH ENDN52:15W20S36:30E87.00-8SSW, WLIGHT BREEZESTHICK FOGGY WEATHER0000000204556
1781-08-08T16:0040.95-66.302172.6ST GEORGE BANK, SOUTH ENDN41:30W21S58:30W10.00-8W-SWLIGHT BREEZES0000000204557
1781-08-09T16:0040.65-66.12262NANTUCKET SHOALS, SOUTH ENDS64:45W39S25:00E19.00-8SWBW-WPM FRESH BREEZESCLOUDY WEATHER0000000204558
1781-08-10T16:0039.93-66.00273NANTUCKET SHOALS, SOUTH ENDS87:40W44S6:50E43.00-8WBS-WBNPM LIGHT BREEZESPM CLEAR WEATHER0000000204559
1781-08-11T16:0039.52-67.4215SANDY HOOKN79:45W106S69:0W70.00-8NWBW-NNEPM LIGHT BREEZESPM HAZY WEATHER0000000204560
1781-08-12T17:0039.85-68.6784SANDY HOOKN81:50W87N73:00W68.00-6N-EPM MODERATEPM CLEAR WEATHER0000000204561
1781-08-13T17:0039.92-71.22287SANDY HOOKN76:40W48N88:10W120.00-6ESE, SBW, WNWPM MODERATERAINPM CLEAR WEATHER0100000204562
1781-08-14T17:0039.85-73.1020SANDY HOOKN55:15W22S87:25W89.00-3CALM, SBE, NW, NNETHICKRAINY WEATHER0100000204563
1781-08-15T17:0039.90-73.6042SANDY HOOKN41:30W15N82:30W24.00-3NNE, SE, CALM, NEPM MODERATEPM CLOUDY WEATHER0000000204564