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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 La Boussole cruise from Ile Mowée to Port Des Francais started at 1786-05-31 [dataset]. Nederlands Instituut voor Wetenschappelijke Inform, Amsterdam, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750052, 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: 44.693529 * Median Longitude: -149.306176 * South-bound Latitude: 21.290000 * West-bound Longitude: -159.170000 * North-bound Latitude: 59.500000 * East-bound Longitude: -137.640000
Date/Time Start: 1786-05-31T22:00:00 * Date/Time End: 1786-07-03T21:00:00
Event(s):
La_Boussole_17860531_NIWI-F-1573 * Latitude Start: 20.510000 * Longitude Start: -156.090000 * Latitude End: 58.410000 * Longitude End: -137.440000 * Date/Time Start: 1786-05-31T00:00:00 * Date/Time End: 1786-07-03T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: La Boussole (Exploration Ves), Voyage: Ile Mowée - Port Des Francais, 1st Observer: J.F.G. de La Perouse (Kapitein), Other ship information: 450 TONS, THREE MASTS, SQUARE RIGGED, COMPLEMENT 113. HET GEDRUKTE BOEK HEET: VOYAGE DE LA PEROUSE AUTOUR DU MONDE. (1797), GEREDIGEERD DOOR M.L.A. MILET-MUREAU. HET BETREFT EEN ZEER BEKENDE REIS WAAROVER OP INTERNET VEEL IS GEPUBLICEERD. HET DERDE DEEL BEVAT EEN TABEL MET METEREOLOGISCHE GEGEVENS, DEZE IS HIER VERWERKT. HET SCHIP VOER IN KONVOOI MET L'ASTROLABE, DIT JOURNAAL IS OOK IN TABELVORM WEERGEGEVEN EN GEEFT OOK UITGEBREIDE WEERGEGEVENS.
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 LandmarkLandmarkName of second landmark
12 BearingBearingBearing of the second landmark
13 --1 If position is considered to be coastal (in port or near coastal disturbances)
14 CommentCommentAny remark, found in the logbook on this particular day, about any biological item
15 CommentCommentOther remarks, that were not possible to put in the other remark fields
16 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.
17 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
18 Sensor readingReadingarbitrary unitsReading of the air pressure
19 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.
20 Wind force descriptionWind force descrAll reported wind forces on this day
21 Present weatherwwWeather description
22 Precipitation descriptionPrecip descr
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 IdentificationIDCLIWOC 2.1 line number
Size:
633 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 
Landmark
(Name of second landmark)
12 
Bearing
(Bearing of the second landmark)
13 
-
(1 If position is considered t...)
14 
Comment
(Any remark, found in the logb...)
15 
Comment
(Other remarks, that were not ...)
16 
Decl [deg]
(It is generally accepted by t...)
17 
Reading [arbitrary units]
(Reading of the (outside) air ...)
18 
Reading [arbitrary units]
(Reading of the air pressure)
19 
Wind dir descr
(All reported wind directions ...)
20 
Wind force descr
(All reported wind forces on t...)
21 
ww
(Weather description)
22 
Precip descr
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 
ID
(CLIWOC 2.1 line number)
1786-05-31T22:0021.29-157.35769.31024.825.0LÎLE WOHAOO (À 6 HEURES DU SOIR)S7820.00280406.00SE-ESE-ENEBON FRAIS0000000131748
1786-06-01T23:0022.95-158.02789.31027.122.51018.00280504.00NE-ENEBON FRAIS0000000131749
1786-06-02T23:0024.88-158.09789.31028.510280508.00ENEBON FRAISBEAU0000000131750
1786-06-03T23:0026.48-158.67789.31029.023.11018.50280601.00ENEBON FRAISBEAU0000000131751
1786-06-04T23:0028.04-158.92809.31027.122.51218.00280504.00ENEBON FRAIS, PAR RAFALESDE LA PLUIE0100000131752
1786-06-05T23:0029.20-158.921476.71024.423.81219.00280405.00ENE-SEVARIABLES-PETIT FRAISBEAU0000000131753
1786-06-06T23:0030.85-158.341929.31017.721.31217.00280203.00SE-SBON FRAISBEAU0000000131754
1786-06-07T23:0032.30-159.172371017.320.61216.50280202.00SWPAR RAFALESBEAUCOUP DE PLUIE0000000131755
1786-06-08T22:0033.97-157.191949.31024.120.61416.50280404.00SBON FRAISNUAGEUX0000000131756
1786-06-09T22:0034.95-156.723079.31026.418.81415.00280502.00S-WNWBON FRAISDE LA PLUIE0100000131757
1786-06-10T22:0035.85-156.391946.71024.418.81415.00280405.00SPETIT FRAISDE LA BRUMEET DE LA PLUIE0110000131758
1786-06-11T22:0037.03-156.24829.31026.015.01412.00280501.00S-ENEBON FRAISDE LA PLUIE0100000131759
1786-06-12T22:0038.03-155.922416.71023.715.01612.00280403.00E-SWPETIT FRAISDE LA PLUIE0100000131760
1786-06-13T22:0039.32-155.452199.31026.015.61612.50280501.00SSWBON FRAISET DE LA BRUMEDE LAPLUIE0110000131761
1786-06-14T22:0041.28-153.922419.31019.614.41611.50280300.00SWBON FRAISTRÈS-BRUMEUX0010000131762
1786-06-15T22:0043.20-152.572889.31015.010.0188.00280104.00WBON FRAISBEAU0000000131763
1786-06-16T22:0045.02-152.093119.31014.09.0187.20280101.00WNWBON FRAISNÉBULEUX0000000131764
1786-06-17T22:0046.87-150.642889.31016.68.8187.00280200.00WBON FRAISNUAGEUX0000000131765
1786-06-18T22:0048.37-147.372461015.47.3215.80280105.00W-SWPAR RAFALESDE LA PLUIE0100000131766
1786-06-19T22:0050.08-146.152699.31006.06.9IN HET JOURNAAL STAAT VOOR DE LUCHTDRUK 27-01-04215.50271004.00WSWBON FRAIS, PAR RAFALESDE LA PLUIE PAR INTERVALLES0100000131767
1786-06-20T22:0051.81-145.123149.31004.16.6215.30270907.00WNWBON FRAISCOUVERT0000000131768
1786-06-21T22:0053.25-143.951599.31014.36.9245.50280102.00W-SEVARIABLE, BON FRAISNUAGEUX0000000131769
1786-06-22T22:0055.63-142.801149.31014.76.9VU PLUSIEURS MORCEAUX DARBRES, ET DES BALEINES.245.50280103.00EBON FRAISCOUVERT0000000131770
1786-06-23T21:0057.62-141.371429.31019.98.1VU BEAUCOUP DOISEAUX, ET DU GOEMON.296.50280209.00ESEBON FRAISNUAGEUX0000000131771
1786-06-24T21:0059.19-140.761429.31013.813.8LA CÔTE DE LAMÉRIQUE (A 5 HEURES DU MATIN)LE MONT SINT-ÉLIEN32W2911.00280009.00ESEBON FRAISBEAU0000000131772
1786-06-25T21:0059.39-140.291191.21013.59.4SONDÉ PAR 80 BRASSES, FOND DE SABLE VASEUX.297.50280008.00SSW-ETRES-FAIBLEBEAU, BRUMEUX0000000131773
1786-06-26T21:0059.50-140.352770.01014.37.5LE MONT SINT-ÉLIEW42NSONDÉ PAR 45 BRASSES, FOND DE VASE. MOUILLÉ PAR 5 O BRASSES, FOND DE VASE (14:00)296.00280102.00WSWCALMEBEAU0000000131774
1786-06-27T21:0059.30-140.35521.21000.77.3295.80270806.00NNETRÈS-FAIBLEBRUMEUX, DE LA PLUIE, LA TERRE ÉTAIT CACHÉE PAR LA BRUME0000000131775
1786-06-28T21:0059.33-140.251421.21009.48.8LES TERRES LES PLUS PROCHEN15W6297.00271105.00ENE-ESETRÈS-FAIBLE0000000131776
1786-06-29T21:0059.38-139.702329.31009.48.8LES TERRES LES PLUS PROCHEN4W6297.00271105.00E-SSWBON FRAISBRUMEUX0000000131777
1786-06-30T21:0058.90-139.022321.01012.87.5LE CAP BEAUTEMPSN78EMOUILLÉ PAR 32 BRASSES, FOND DE VASE (22:00)296.00280006.00SSWFAIBLEBRUMEUX0000000131778
1786-07-01T21:0059.05-138.542546.71018.48.8APPAREILLÉ À 11:00297.00280205.00SWPETIT FRAISBEAU0000000131779
1786-07-02T21:0058.67-138.142990.01022.59.1LE MONT BEAU-TEMPSN6E20:00H MOUILLÉ À LENTRÉE DUN PORT QUI NOUS RESTAIT AU N39O. À UN QUART DE LIEUE.297.30280308.00WCALME0000000131780
1786-07-03T21:0058.60-137.642996.71016.66.91295.50280200.00WPETIT FRAISBEAU0000000131781