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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 RATTLER cruise from Fayal to St. Johns started at 1807-05-18 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751689, 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: 40.587368 * Median Longitude: -39.824737 * South-bound Latitude: 36.200000 * West-bound Longitude: -51.730000 * North-bound Latitude: 45.700000 * East-bound Longitude: -29.330000
Date/Time Start: 1807-05-18T14:00:00 * Date/Time End: 1807-06-05T15:00:00
Event(s):
Rattler_18070518_NMM_ADM/L/R61 * Latitude Start: 38.030000 * Longitude Start: -29.330000 * Latitude End: 47.670000 * Longitude End: -52.270000 * Date/Time Start: 1807-05-18T00:00:00 * Date/Time End: 1807-06-05T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Rattler (Sloop), Voyage: Fayal, Azores - St Johns, 1st Observer: James Agassiz (Captain), Company: Royal Navy, Other ship information: 16G 361BM
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 Precipitation descriptionPrecip descr
15 State of the sea descriptionState sea descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 IdentificationIDCLIWOC 2.1 line number
Size:
362 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 
Precip descr
15 
State sea descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
ID
(CLIWOC 2.1 line number)
1807-05-18T14:0038.03-29.332829.3FLORESN56E40S42W41.00-22NNW, NW, WNWAM MODERATE BREEZES, NOON FRESH BREEZES, PM MODERATECLOUDY WEATHER0000000207229
1807-05-19T14:0036.20-30.952746.7FLORESN3W65S26W123.00-19NWBW, NW, WSW, WBS, WAM MODERATE, PM LIGHT BREEZESAM SMALL RAINCLOUDY WEATHER0100000207230
1807-05-20T14:0037.20-31.432749.3FLORESN5E45N20W60.00-19W, WBN, NWBW, VARIABLE, NWBNFRESH BREEZESCLOUDY0000000207231
1807-05-21T14:0038.10-31.7316.7FLORESN18E28N16W54.00-22NWBN, VARIABLEAM LIGHT BREEZES, NOON MODERATE BREEZES, PM LIGHT WINDSAM CLOUDY, PM HAZY0000000207232
1807-05-22T14:0038.48-33.43246.7FLORESN63E40WNW80.00-21NEBNAM MODERATE, PM LIGHT BREEZES, PM LIGHT BREEZESAM CLOUDY, PM CLEAR0000000207233
1807-05-23T14:0038.75-34.073620.0SOUTH POINT BANKN81W288N61W34.00-21E, ESE, SSWAM LIGHT AIRS INCLINING TO CALM, NOON CALM, PM LIGHT AIRSCLOUDY WEATHER0000000207234
1807-05-24T14:0039.20-34.482386.7SOUTH POINT BANKN83W271N46W38.00-21SWBW, WSW, WAM MODERATE BREEZES, NOON MODERATE, PM MODERATE0000000207235
1807-05-25T14:0039.95-35.082412.3SOUTH POINT BANKN85W241N60W72.00-21NNW, N, NNEAM FRESH BREEZES, NOON STRONG BREEZES, PM FRESH BREEZESCLOUDY WEATHER0000000207236
1807-05-26T15:0039.88-39.33706.7SOUTH POINT BANKN84W211N88W111.00-20NNE, ESE, SE, SWBS, SSE, SSWAM MODERATE, PM LIGHT BREEZESCLOUDY WEATHER0000000207237
1807-05-27T15:0040.43-41.171949.3SOUTH POINT BANKN86W158N68W91.00-20SSW, SW, WNW, SWAM FRESH BREEZES, PM LIGHT BREEZESHAZY0000000207238
1807-05-28T15:0041.00-42.023406.7SOUTH POINT BANKW150N51W44.00-20SW, NWBW, NBE, WSWAM MODERATE, PM LIGHT BREEZESCLOUDY WEATHER0000000207239
1807-05-29T15:0040.82-42.622182.6SOUTH POINT BANKN89W142S66W27.00-18S, SSW, SBW, SWBW, SWAM LIGHT BREEZES, PM FRESH BREEZESAM CLOUDY, PM HAZY0000000207240
1807-05-30T15:0041.70-43.782866.7SOUTH POINT BANKN83W115N44W71.00-18SWBW, VARIABLE, WNW, WBN, WAM MODERATE BREEZES, NOON MODERATE, PM MODERATENOON CLOUDY, PM HAZY0000000207241
1807-05-31T15:0042.38-44.622526.7SOUTH POINT BANKN47W151N29W54.00-18WBN, SWAM MODERATE BREEZES, NOON MODERATE BREEZES, PM MODERATE BREEZESCLOUDY WEATHER0000000207242
1807-06-01T15:0042.52-47.282366.7ST JOHNSN42W109N58W128.00-23SW, WNW, NWBW, NNW, VARIABLE, NEBNAM MODERATE BREEZES, NOON MODERATE BREEZES, PM FRESH BREEZESPM A HEAVY SWELL FROM THE NWAM CLOUDY, PM HAZY0010000207243
1807-06-02T15:0044.15-48.171366.7ST JOHNSN41W270N29W48.00-22NEBN, ENE, SE, SSWAM CALM, NOON MODERATE, PM FRESH BREEZESAM HAZY, NOON CLOUDY, PM HAZY0000000207244
1807-06-03T15:0042.52-47.282366.7ST JOHNSN42W109N58W128.00-23SW, WNW, NWBW, WNW, NNW, VARIABLEAM MODERATE BREEZES, NOON MODERATE, PM FRESH BREEZESAM CLOUDY, PM HAZY0000000207245
1807-06-04T15:0044.15-48.171366.7ST JOHNSN41W90N29W48.00-22NWBN, ENE, SE, SSWAM CALM, NOON MODERATE, PM FRESH BREEZESHAZY WEATHER0000000207246
1807-06-05T15:0045.70-51.732269.3CAPE RACEN37W25N50W149.00-22SSW, WSW, WBSAM MODERATE BREEZES, NOON FRESH BREEZES, PM FRESH BREEZESRAIN0110000207247