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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 IMPERIEUSE cruise from Table Bay to Trincomalee started at 1799-02-04 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749759, 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: -22.719310 * Median Longitude: 66.070000 * South-bound Latitude: -40.570000 * West-bound Longitude: 14.880000 * North-bound Latitude: 4.780000 * East-bound Longitude: 89.450000
Date/Time Start: 1799-02-04T00:00:00 * Date/Time End: 1799-04-03T06:00:00
Event(s):
Imperieuse_17990204_NMM_ADM/L/J50 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: 8.620000 * Longitude End: 81.600000 * Date/Time Start: 1799-02-04T00:00:00 * Date/Time End: 1799-04-03T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Imperieuse (5th Rate Frigate), Voyage: Table Bay - Trincomalee, 1st Observer: Josia Rowley (Captain), Company: Royal Navy, Other ship information: 38G 1040BM
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 IdentificationIDCLIWOC 2.1 line number
Size:
1134 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 
ID
(CLIWOC 2.1 line number)
1799-02-04T00:00-33.671581.0TABLE LANDSSE5VARIABLE, SSELIGHT AIRSVARIABLE0000000114554
1799-02-05T11:00-33.7016.681796.7TABLE LANDS82E31N82W92.00-24SSWMODERATE BREEZEHAZY THEN CLEAR0000000114555
1799-02-06T11:00-33.9315.881902.6CAPE OF GOOD HOPES79E44S71W43.00-24SSW, SWBSMODERATE BREEZE THEN LIGHT BREEZECLEAR0000000114556
1799-02-07T11:00-34.4314.881796.7CAPE AGULLASS86E89S68W54.00-24W, SSWLIGHT AIRS THEN MODERATECLEAR0000000114557
1799-02-08T11:00-36.7515.6724619.0TILEMAQUE SHOALSS67E106S15E149.00-24NNW, WMODERATE, AM FRESH GALES AND SQUALLYCLOUDY0000000114558
1799-02-09T11:00-38.0217.322911.0TILEMAQUE SHOALSS79E72S43E115.00-24WSW, NWPMMODERATE BREEZES, AM LIGHT AIRSPASSING SHOWERS OF RAINCLOUDY1100000114559
1799-02-10T11:00-39.7819.182226.7TILEMAQUE SHOALSN65E45S39E132.00-26WSWMODERATE BREEZESCLOUDY0000000114560
1799-02-11T11:00-39.7221.472221.0TILEMAQUE SHOALSN17E20N88E106.00-26NNW, WSWFRESH BREEZES THEN LIGHT AIRSPASSING SHOWERS OF RAINCLOUDY1100000114561
1799-02-12T10:00-40.0323.853216.7ISLE OF ST PAULSN86:30E840S80E112.00-28NBWMODERATEPLESANT0000000114562
1799-02-13T10:00-40.0526.333212.6ISLE OF ST PAULSN86E803E114.00-28SW, NBWLIGHT BREEZESPM CLEAR, AM CLOUDY0000000114563
1799-02-14T10:00-39.4529.072416.7ISLE OF ST PAULSN87E730N74E131.00-29SW, WMODERATECLOUDY0000000114564
1799-02-15T10:00-39.0031.451746.7ISLE OF ST PAULSN87:30E733N78E112.00-29WNW, SSWMODERATECLOUDY0000000114565
1799-02-16T10:00-39.3333.9826319.0ISLE OF ST PAULSN87E687S80E120.00-30WNWFRESH GALESRAINCLOUDY0100000114566
1799-02-17T10:00-38.6337.371739.3ISLE OF ST PAULSN82E640N80E162.00-30SBE, SSWFRESH BREEZESCLOUDY0000000114567
1799-02-18T09:00-37.9339.151286.7ISLE OF ST PAULSN89E610N63E94.00-30SSEMODERATECLOUDY0000000114568
1799-02-19T09:00-38.6340.371281.0ISLE OF ST PAULSN88E603S42E54.00-30SEBE, SSELIGHT AIRSCLOUDY0000000114569
1799-02-20T09:00-39.2341.77941.0ISLE OF ST PAULSN88E661S42E54.00-30ENE, SEBELIGHT AIRSCLOUDY0000000114570
1799-02-21T09:00-39.8243.18602.6ISLE OF ST PAULSN85:30E543S61E151.00-30N, ELIGHT BREEZES AND FRESH BREEZESCLEAR THEN CLOUDY0000000114571
1799-02-22T09:00-40.1547.4233019.0ISLE OF ST PAULSN84E357S84E196.00-30NWBW, NFRESH GALESPASSING SHOWERS OF RAINCLOUDY1100000114572
1799-02-23T09:00-40.4351.6827519.0ISLE OF ST PAULSN81E420S85E196.00-29N, NWBWFRESH GALESPASSING SHOWERS OF RAINCLOUDY1100000114573
1799-02-24T08:00-40.5756.1328722.6ISLE OF ST PAULSN80E342S88E208.00-28W, NWFRESH GALES, THEN STRONG GALESPASSING SQUALLS OF RAINCLOUDY1100000114574
1799-02-25T08:00-40.3060.5724322.6ISLE OF ST PAULSN79E274N87E204.00-27WSW, WSTRONG GALESHIGH SEA FROM THE SCLOUDY0000000114575
1799-02-26T08:00-40.5564.602116.7ISLE OF ST PAULSN76E215S86E182.00-25W, SWBWMODERATECLOUDY0000000114576
1799-02-27T08:00-40.2867.252456.7ISLE OF ST PAULSN80E191N86E122.00-25N, WLIGHT AIRS, THEN MODERATE BREEZESCLOUDY0000000114577
1799-02-28T07:00-39.0571.183366.7ISLE OF ST PAULSN74E110N78E198.00-24W, NFRESH GALES THEN MODERATECOUDY0000000114578
1799-03-01T07:00-37.5074.782486.7ISLE OF ST PAULSE51N45E128.00-22NNW, WMODERATECLOUDY0000000114579
1799-03-02T07:00-35.5376.883326.7ISLE OF ST PAULSS22E46N45E142.00-17NBWMODERATE THEN MODERATE BREEZESPASSING SHOWERS OF RAINCLOUDY THEN CLEAR1100000114580
1799-03-03T07:00-33.5880.672776.7ISLE OF ST PAULSS22E85N48E185.00-16S, WNWMODERATEPASSING RAINCLOUDY0100000114581
1799-03-04T07:00-31.5882.171356.7CLOUTES ISLANDN46E280N38E125.00-11E, SEBSMODERATEPASSING RAINCLOUDY0100000114582
1799-03-05T07:00-30.4082.451131.0CLOUTES ISLANDN47E256N12E64.00-11NE, SEBEMODERATE THEN LIGHT AIRSCLOUDY THEN CLEAR0000000114583
1799-03-06T06:00-29.8882.75352.6CLOUTES ISLANDN50E251N37E27.00-10W, NELIGHT AIRS INCLINABLE TO CALM, THEN LIGHT BREEZESCLEAR0000000114584
1799-03-07T06:00-27.8583.8321519.0CLOUTES ISLANDN52E220N38E136.00-10SSE, SWPM LIGHT BREEZES, AM FRESH GALESPASSING SHOWERS OF RAINCLEAR THEN HAZY1100000114585
1799-03-08T06:00-25.2285.7815119.0ACHEN HEADN16E658N33E191.00-7SE, SSEFRESH GALESCLOUDY0000000114586
1799-03-09T06:00-22.6886.8810619.0ACHEN HEADN17E584N22E167.00-7E, ESEFRESH GALESCLOUDY0000000114587
1799-03-10T06:00-20.3587.3210910.0ACHEN HEADN18E541N10E141.00-4E, ESEBRISK TRADE WINDSHOWERS OF RAIN1100000114588
1799-03-11T06:00-18.2287.678610.0ACHEN HEADN18E492N9E125.00-4EBRISK TRADE WIND0000000114589
1799-03-12T06:00-16.0888.5011110.0ACHEN HEADN19E452N22E141.00-2ESEBRISK TRADE WIND0000000114590
1799-03-13T06:00-13.7887.8811110.0ACHEN HEADN20E381N24E150.00-2ESEBRISK TRADE WIND0000000114591
1799-03-14T06:00-11.5788.451136.7ACHEN HEADN20E360N28E132.000ESEMODERATE BREEZESCLOUDY0000000114592
1799-03-15T06:00-10.2088.581131.0ACHEN HEADN24E343N5E65.000VARIABLE, ESELIGHT AIRS INCLINABLE TO CALMVARIABLE0000000114593
1799-03-16T06:00-9.9088.583621.0CELYON, STH POINTN26W351N18.000VARIABLELIGHT AIRSRAINCLOUDY THEN CLEAR0100000114594
1799-03-17T06:00-9.7588.573621.0CELYON, STH POINTN26W347N38W9.000VARIABLELIGHT AIRS INCLINABLE TO CALMVARIABLE0000000114595
1799-03-18T06:00-9.7088.383621.0CELYON, STH POINTN25W344N39W18.000VARIABLELIGHT AIRS INCLINABLE TO CALMVARIABLEPASSING SHOWERS OF RAIN1100000114596
1799-03-19T06:00-8.4888.38906.7CELYON, STH POINTN27W320N73.000ESE, ELIGHT AIRS THEN MODERATEVARIABLE THEN CLOUDYPASSING SHOWERS OF RAIN1100000114597
1799-03-20T06:00-6.3888.30916.7CELYON, STH POINTN31W283N2W128.001EMODERATE BREEZESCLOUDY0000000114598
1799-03-21T06:00-4.3888.20916.7CELYON, STH POINTN35W248N3W111.001EMODERATE,THEN MODERATE BREEZESCLOUDY THEN CLEAR0000000114599
1799-03-22T06:00-2.9388.20916.7CELYON, STH POINTN39W226N91.001EMODERATE BREEZESCLEAR0000000114600
1799-03-23T06:00-2.5388.273622.6CELYON, STH POINTN41W220N10E27.001VARIABLELIGHT AIRS THE LIGHT BREEZES WITH PASSING SQUALLSRAINCLOUDY0100100114601
1799-03-24T06:00-1.3388.37922.6CELYON, STH POINTN46W205N5E72.002SW, ELIGHT BREEZES WITH PASSING SQUALLSPASSING SQUALLS OF RAINCLOUDY1100000114602
1799-03-25T06:000.5888.372272.6MADRASN32W295N115.002W, SWLIGHT BREEZES WITH PASSING SQUALLSPASSING SQUALLS OF RAINCLOUDY1100000114603
1799-03-26T06:001.9388.582726.7MADRASN38W258N9E73.002NW, WMODERATE, AM LIGHT AIRS INCLINABLE TO CALMPASSING SHOWERS OF RAINCLOUDY1100000114604
1799-03-27T06:002.9388.852726.7MADRASN39W263N11E81.002NW, WMODERATE BREEZESPASSING SHOWERS OF RAINCLOUDY1100000114605
1799-03-28T06:003.4889.453176.7MADRASN42:30W259N35E63.002NWMODERATE BREEZESCLOUDY0000000114606
1799-03-29T06:003.4388.853171.0MADRASN40:30W252W83S36.002NWPM MODERATE, AM LIGHT AIRS INCLINABLE TO CALMCLOUDY0000000114607
1799-03-30T06:003.2788.652951.0MADRASN39W253S82W25.002N, WNWLIGHT AIRSHAZY0000000114608
1799-03-31T06:003.4288.773401.0MADRASN40E252N17E24.002WNW, NNWLIGHT AIRSCLOUDY0000000114609
1799-04-01T06:003.8788.472831.0MADRASN40E243N8E29.002NWBN, WBNLIGHT AIRSCLOUDY0000000114610
1799-04-02T06:004.1588.082951.0MADRASN39W235N55W28.002SW, WNWLIGHT AIRSCLOUDY0000000114611
1799-04-03T06:004.7887.722271.0MADRASN41W229N38W36.002SWLIGHT AIRS INCLINABLE TO CALMCLOUDY0000000114612