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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 ACASTA cruise from Road Torn Tortola to The Downs started at 1809-07-04 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747144, 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: 38.553095 * Median Longitude: -44.697143 * South-bound Latitude: 19.650000 * West-bound Longitude: -65.350000 * North-bound Latitude: 51.020000 * East-bound Longitude: -5.500000
Date/Time Start: 1809-07-04T16:00:00 * Date/Time End: 1809-08-14T12:00:00
Event(s):
Acasta_18090704_NMM_RUSI/NM/180/9 * Latitude Start: 19.650000 * Longitude Start: -65.350000 * Latitude End: 49.600000 * Longitude End: -5.500000 * Date/Time Start: 1809-07-04T00:00:00 * Date/Time End: 1809-08-14T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Acasta (5th Rate Frigate), Voyage: Road Torn Tortola - The Downs, 1st Observer: Philip Beaver (Captain), Company: Royal Navy, Other ship information: 40G 1127BM
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
Pressure, atmosphericPPPPhPaNo temperature correction was applied. The following factors have been used for the conversion to hPa: 2.54 cm in an inch; 13.596 specific gravity of mercury; 980.65 cm/s gravity at 45° latitude
Temperature, airTTT°C
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
10 Distance to landmarkDistancearbitrary unitsDistance to the first landmark
11 CourseCourseCourse of the ship during the past 24 hours
12 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
13 CommentCommentOther remarks, that were not possible to put in the other remark fields
14 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.
15 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
16 Sensor readingReadingarbitrary unitsReading of the air pressure
17 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.
18 Wind force descriptionWind force descrAll reported wind forces on this day
19 Present weatherwwWeather description
20 Precipitation descriptionPrecip descr
21 State of the sea descriptionState sea descr
22 ClearnessClearness
23 GustsGusts1 If wind gusts are reported
24 Precipitation/RainRain1 If rain was reported
25 FogFog1 If fog was reported
26 Snow typeSnow1 If snow was reported
27 ThunderThunder1 If thunder and or lightning was reported
28 HailHail1 If hail was reported
29 Sea iceSea ice1 If sea-ice or icebergs were reported
30 CommentComment
31 IdentificationIDCLIWOC 2.1 line number
Size:
979 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...)

PPPP [hPa]
(No temperature correction was...)

TTT [°C]

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)
10 
Distance [arbitrary units]
(Distance to the first landmark)
11 
Course
(Course of the ship during the...)
12 
Distance [arbitrary units]
(Distance travelled during the...)
13 
Comment
(Other remarks, that were not ...)
14 
Decl [deg]
(It is generally accepted by t...)
15 
Reading [arbitrary units]
(Reading of the (outside) air ...)
16 
Reading [arbitrary units]
(Reading of the air pressure)
17 
Wind dir descr
(All reported wind directions ...)
18 
Wind force descr
(All reported wind forces on t...)
19 
ww
(Weather description)
20 
Precip descr
21 
State sea descr
22 
Clearness
23 
Gusts
(1 If wind gusts are reported)
24 
Rain
(1 If rain was reported)
25 
Fog
(1 If fog was reported)
26 
Snow
(1 If snow was reported)
27 
Thunder
(1 If thunder and or lightning...)
28 
Hail
(1 If hail was reported)
29 
Sea ice
(1 If sea-ice or icebergs were...)
30 
Comment
31 
ID
(CLIWOC 2.1 line number)
1809-07-04T16:0019.65-65.351031021.426.9BERMUDAN4W255N10W71.00280.50300106.00AM: EBS, E,FRESH BREEZES, AM SQUALLYRAINHAZY, NOON CLOUDY, LATER CLOUDY0100100131
1809-07-05T16:0020.50-65.30926.71021.726.9BERMUDAN7E237N2E72.00280.50300107.00EAM FRESH BREEZES, THEN NOON ONWARDS MODERATE BREEZESCLOUDY, MID AND LATTER HAZY0000000132
1809-07-06T16:0022.20-65.30921.01021.726.9BERMUDAN9E210N69.00280.50300107.00PM: EBSMODERATE BREEZES, NOON LIGHT AIRSCLOUDY, NOON CLEAR0000000133
1809-07-07T16:0023.50-65.101016.71021.126.4BERMUDAN9E184N8E79.00079.50300105.00AM: E, EBN, EBSMODERATE BREEZESCLOUDY0000000134
1809-07-08T16:0024.73-64.75456.71020.726.7BERMUDAN8E158N15E77.00080.00300104.00AM: SEBE, ESE, SEBS, PM: SEBS, ESEMODERATE BREEZESCLOUDY THEN CLEAR0000000135
1809-07-09T16:0026.18-64.251582.61024.127.2BERMUDAN6E129S17E91.00081.00300204.00AM: ESE, SSE, PM: SBWMODERATE BREEZES, LATTER LIGHT WINDSHAZY THEN FINE THEN CLOUDY0000000136
1809-07-10T16:0027.30-63.881242.61024.525.6BERMUDAN4E106N16E70.00078.00300205.00AM: ESE, VARIABLE, WSW, E, PM: EBS, ESE, SEBSFIRST LIGHT AIRS, THEN LIGHT BREEZES, MID LIGHT WINDSCLOUDY, MID CLEAR0000000137
1809-07-11T16:0028.50-63.321336.71023.426.4BERMUDAN2W82N23E79.00-279.50300202.00AM: SEBS, SE, ESE, PM: SEBSFIRST LIGHT WINDS, MID AND LATTER MODERATE BREEZESCLOUDY0000000138
1809-07-12T16:0030.20-62.521226.71023.126.3BERMUDAN19W60N23E111.00-279.25300201.00AM: SEBS, SE, PM: SEBE, SSEMODERATE BREEZESCLOUDY0000000139
1809-07-13T16:0031.60-61.621542.61025.526.1BERMUDAN71W52S29E96.00-479.00300208.00AM: SE, PM: ESE,FIRST MODERATE BREEZES, MID LIGHT WINDS, LATTER CALM THEN LIGHT AIRSCLOUDY THEN CLEAR0000000140
1809-07-14T16:0032.05-61.233620.01024.826.4BERMUDAN82W58N37E32.00-479.50300206.00AM: SBE, E, EBN, VARIABLE, PM: WNWLIGHT AIRS, MID CALMCLEAR0000000141
1809-07-15T16:0032.13-60.933621.01024.826.9BERMUDAN84W183N69E17.00-480.50300206.00VARIABLELIGHT AIRS AND CALMCLOUDY0000000142
1809-07-16T16:0032.47-60.852891.01025.526.9BERMUDAN87W63N30E12.00-480.50300208.00AM: SSWCALM, MID AND LATTER LIGHT AIRSCLOUDY0000000a trivial correction was made in this observation143
1809-07-17T16:0032.68-60.582171.01025.526.9BERMUDAS85:30E70N30E27.00-880.50300208.00AM: SW, SSW, PM: WSWLIGHT AIRS0000000144
1809-07-18T16:0033.25-59.922176.71024.826.9CORVON74E464N41E45.00-880.50300206.00AM: WSW, SWBWFIRST LIGHT AIRS, MID MODERATE BREEZESCLEAR0000000145
1809-07-19T16:0034.17-58.952626.71023.426.4CORVON78E432N43W73.00-879.50300202.00AM: WNW, PM: WBNMODERATE BREEZESCLOUDY0000000146
1809-07-20T16:0035.35-57.832176.71023.426.1CORVON79E415N42E83.00-879.00300202.00AM: WBN, PM: WSWMODERATE BREEZESCLOUDY AND CLEAR0000000147
1809-07-21T16:0036.78-56.222159.31021.425.8CORVON82E385N42E116.00-1078.50300106.00AM: SW, SWBS, PM: ESE, WBN, WSW, SWFRESH BREEZESCLOUDY AND HAZY0000000148
1809-07-22T16:0038.35-54.2521012.31019.725.6CAPE CLEARN67:30E679N46E130.00-1578.00300101.00AM: WSW, ESE, PM: NW, WSW, SWFRESH BREEZES, HEAVY SQUALLS, MID STRONG BREEZES AND SQUALLY, LATTER STRONG WINDSRAINHEAVY SEACLOUDY0100000149
1809-07-23T15:0039.93-52.0519712.31004.522.8CAPE CLEARN68E618N56E176.00SEA LEVEL PRESSURE WAS RECORDED AS 390606-1773.00290606.00AM: SWBW, SW, SWBS, PM: SWFIRST STRONG GALES AND FREQUENT SQUALLS, MID STRONG BREEZESCLOUDY0000000a trivial correction was made in this observation150
1809-07-24T15:0040.90-49.172191.01023.423.6CAPE CLEARN69E584N56E103.00-1774.50300202.00AM: SWBW, SWBS, PM: WBSFRESH BREEZES AND SQUALLY, MID MODERATE BREEZES, LATTER LIGHT AIRSRAINCLOUDY0100000151
1809-07-25T15:0041.38-48.58516.71010.920.0CAPE CLEARN70E571N43E39.00-1768.00290805.00SW, VARIABLE, NEBE, ENE, NE, NEBN, NBEAM SQUALLY, CALM, LIGHT AIRS, MODERATE BREEZES, PM MODERATE BREEZES, MODERATETHICKRAINCLOUDY0100000152
1809-07-26T15:0040.78-47.67516.71016.025.6CAPE CLEARN68E563S56E50.00-1778.00300000.00NBE, NNE, NE, ENE, NE, SEAM MODERATE BREEZES, PM LIGHT AIRS AND CALMCLOUDY THEN FAIR0000000153
1809-07-27T15:0040.77-47.351406.71018.024.2CAPE CLEARN68E560E15.00-1875.50300006.00SE, SSE, SBE, SSEAM LIGHT AIRS, MODERATE, PM MODERATE BREEZESCLEAR0000000154
1809-07-28T15:0041.83-45.221626.71019.723.3CAPE CLEARN68E522N58E110.00-1874.00300101.00S, SBWMODERATE BREEZESAM CLEAR, PM CLOUDY0000000155
1809-07-29T15:0042.77-42.972026.71024.121.7CAPE CLEARN69E484N63E112.00-2371.00300204.00SBW, SW, SSW, SWBSMODERATE BREEZESAM CLOUDY, PM CLEAR0000000156
1809-07-30T15:0043.70-41.302246.71025.523.3CAPE CLEARN70E452N55E98.00-2474.00300208.00SWBS, W, WSW, W, WBNMODERATE BREEZESAM CLEAR, PM FINE0000000157
1809-07-31T15:0044.20-39.752466.71025.123.6CAPE CLEARN70E429N66E74.00-2474.50300207.00WBN, W, SWBW, SWBSMODERATE BREEZESAM CLOUDY, PM CLEAR0000000158
1809-08-01T15:0044.70-37.952246.71024.123.9CAPE CLEARN70E397N73E102.00-2475.00300204.00SWBW, NNE, WSW, W, WBN, WAM MODERATE, PM MODERATE BREEZECLOUDY0000000159
1809-08-02T14:0045.17-35.552569.31021.423.9CAPE CLEARN70E365N73E104.00-2575.00300106.00W, WBN, SE, WSW, WAM FRESH BREEZES, PM FRESH BREEZES THEN FRESH WINDS AND SQUALLYCLOUDY0000000160
1809-08-03T14:0046.15-32.5524512.3982.123.1CAPE CLEARN71E318N65E142.00-2573.50290000.00W, W, NNWAM FRESH BREEZES AND SQUALLY, STRONG BREEZES AND SQUALLY, PM STRONG WINDSMUCH SEAVERY HAZY0000000161
1809-08-04T14:0047.33-28.302899.3973.718.6CAPE CLEARN71E255N68E190.00-2665.50280705.00NW, NNW, NW, NNW, NBW, NEBN, NEAM STRONG GALES AND SQUALLY, STROGN GALES AND HEAVY SQUALLS, PM HARD GALES, FRESH BREEZESAM VERY HEAVY SEA, TREMENOUS SEA, PM HEAVY SEA, MUCH CROSS SEACLOUDY0000000162
1809-08-05T14:0047.32-25.433572.61020.017.2CAPE CLEARN68E220E117.00-2663.00300102.00NE, NEBN, NNE, NNE, SW, WNW, WAM MODERATE BREEZES, LIGHT BREEZE, PM LIGHT AIRS, CALM, LIGHT WINDS, MODERATE BREEZEAM CLOUDY, PM CLEAR0000000163
1809-08-06T14:0047.90-25.122409.31014.019.4CAPE CLEARN71E211N30E40.00-3067.00290904.00WBS, W, WBS, WFRESH BREEZESCLOUDY0000000164
1809-08-07T13:0049.07-22.123099.31002.117.8CAPE CLEARN74E165N60E138.00-2964.00290509.00W, WBS, E, NBW, NNW, NBW, N, NBWAM FRESH BREEZES, SQUALLY, PM FRESH BREEZESRAINCLOUDY0100000165
1809-08-08T13:0050.15-19.052866.7999.415.8CAPE CLEARN79E121N61E132.00-2960.50290501.00NNW, NW, W, WBN, WAM FRESH BREEZES, MODERATE BREEEZES, PM FRESH BREEZES, MODERATE BREEZESRAINHEAVY SWELLCLOUDY0100000166
1809-08-09T13:0050.90-16.22401.0998.415.6CAPE CLEARN85E85N68E119.00-2860.00290408.00WBS, WBW, SW, SBW, S, ENE, ENE, NE, NNEAM FRESH BREEZES, LIGHT AIRS, PM MODERATE, FRSH BREEZESAM CLOUDY, CLEAR, PM CLEAR0000000167
1809-08-10T13:0051.02-13.2266.71007.516.9CAPE CLEARN83E47N86E115.00-2862.50290705.00NBE, NEBN, NNE, N, NBW, NNE, NW, NAM MODERATE, PM LIGT BREEZESCLOUDY0000000168
1809-08-11T13:0050.90-10.5776.71005.815.6CAPE CLEARN54E14S86E101.00-2760.00290700.00NEBN, NNE, NEBN, NBE, NNEAM MODERATE BREEZES AND SQUALLY, PM FRESH BREEZES, STRONG BREEZESCLOSECLOUDY0000000169
1809-08-12T13:0050.90-10.023226.71005.516.7CAPE CLEARN73E27E118.00-2762.00290609.00N, NEBN, NE, NBE, N, NNE, WNWAM FRESH BREEZES AND SQUALLY, LIGHT WINDS, PM LIGHT WINDS, MODERATE BREEZESTHICK RAIN0100000170
1809-08-13T13:0050.27-9.472436.71004.515.8ST AGNESS80E40N65E102.00-2760.50290606.00NBW, NWBN, NW, NWBW, W, WBS, WNW, WSW, WAM MODERATE BREEZES, PM FRESH BREEZES AND SQUALLYCLOUDY0000000171
1809-08-14T12:0049.60-5.502116.71005.116.7EDYSTONEN58E21S75E168.00-2562.00290608.00WBS, WSW, SWBW, WBN, SW, WAM STRONG BREEZES AND SQUALLY, PM FRESH BREEZES, MODERATEHAZY0000000172