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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 RAMILLES cruise from Bermuda to Shelburne Harbour started at 1814-06-24 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751684, 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: 39.035455 * Median Longitude: -65.672727 * South-bound Latitude: 32.350000 * West-bound Longitude: -67.730000 * North-bound Latitude: 43.470000 * East-bound Longitude: -63.700000
Date/Time Start: 1814-06-24T16:00:00 * Date/Time End: 1814-07-04T16:00:00
Event(s):
Ramilles_18140624_NMM_LOG/N/R/32 * Latitude Start: 32.180000 * Longitude Start: -63.300000 * Latitude End: 43.470000 * Longitude End: -65.780000 * Date/Time Start: 1814-06-24T00:00:00 * Date/Time End: 1814-07-04T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Ramilles (3rd Rate Frigate), Voyage: Bermuda - Shelburne Harbour, 1st Observer: Thomas Hardy (Captain), 2nd Observer: John Hood Wolsely (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 74G 1652BM
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 CommentComment
26 IdentificationIDCLIWOC 2.1 line number
Size:
219 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 
Comment
26 
ID
(CLIWOC 2.1 line number)
1814-06-24T16:0032.35-64.202576.7CAPE NEGRON4W200N13E72.00-2SW, WBS, NWAM MODERATE 6PM FRESH BREEZESSQUALLYCLOUDY0000000207167
1814-06-25T16:0034.87-63.702759.3CAPE NEGRON7W172N17E86.00-6WNW, WBN, VARIABLEFRESH BREEZESPM SQUALLYCLOUDY0000000207168
1814-06-26T16:0036.25-63.902759.3CAPE NEGRON8W148N6W84.00-6W, WBN, SW, VARIABLEAM FRESH BREEZES PM MODERATE8AM SQUALLY 8PM LIGHTNING1PM RAINCLOUDY0100100207169
1814-06-27T16:0037.50-64.672496.7CAPE NEGRON4W133N23W93.00-10SW, NW, WBS, SWBW1AM FRESH BREEZES 2AM CALM 4AM STRONG BREEZES 8AM MODERATE 1PM LIGHT BREEZES 4PM FRESH BREEZES1AM FINE 2AM CLOUDY 8AM FINE 8PM CLOUDY0000000207170
1814-06-28T16:0038.93-65.502389.3CAPE NEGRON21E110N17W134.00-10VARIABLE, WSWAM FRESH BREEZES 8PM MODERATE5AM A HEAVY SQUALL PM SQUALLYCLOUDY0000000207171
1814-06-29T16:0039.38-65.751930.0CAPE NEGRON40E103N9W70.00-10VARIABLE, SSW, SW1AM FRESH BREEZES 4AM MODERATE 9AM CALM 1PM LIGHT AIRS 6PM MODERATE1AM SQUALLY1AM RAIN AND LIGHTNINGCLOUDY0100100207172
1814-06-30T16:0040.48-66.981709.3BRAZIL ROCKN21E63N36W96.00-10WSW, SEBS, S, SWBS, SWBW, VARIABLE1AM LIGHT BREEZES 11AM FRESH BREEZES 1PM MODERATE 8PM FRESH BREEZES MIDNIGHT LIGHT AIRS1PM RAINHEAVY SWELL FROM THE SOUTH1AM FINE 8AM CLOUDY PM CLOUDY0100000207173
1814-07-01T17:0041.42-67.67170.0BRAZIL ROCKN47E55N38W72.00-6SE, NBW1/2W, NNE, VARIABLE1AM LIGHT AIRS 4AM FRESH BREEZES NOON CALM MIDNIGHT LIGHT BREEZESAM CLOUDY 2PM FOGGY WEATHER0010000207174
1814-07-02T17:0041.72-67.732642.6BRAZIL ROCKN45E47N39W25.00-6W, NWBWAM LIGHT BREEZES 6PM MODERATE1AM CLOUDY 8AM FOGGY PM FOGGY0010000207175
1814-07-03T16:0043.02-66.521882.6BRAZIL ROCKN66E18N28E100.00-15W, SE, SSW, VARIABLEAM LIGHT WINDS PM MODERATE1AM HAZY 11:30AM THICK FOG 1PM FOGGY 8PM HAZY0010000a trivial correction was made in this observation207176
1814-07-04T16:0043.47-65.782102.6SHELBURNE LIGHTN60E9N48E43.00-15VARIABLE, WBN, SW, VARIABLE1AM FRESH BREEZES 4AM LIGHT BREEZES 8AM FRESH BREEZES NOON LIGHT BREEZES 8PM FRESH BREEZESAM FOGGY WEATHER 2PM FOGGY0010000207177