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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 Castries to Avatscha started at 1787-08-03 [dataset]. Nederlands Instituut voor Wetenschappelijke Inform, Amsterdam, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750060, 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: 48.063784 * Median Longitude: 149.396216 * South-bound Latitude: 45.350000 * West-bound Longitude: 140.680000 * North-bound Latitude: 53.020000 * East-bound Longitude: 160.000000
Date/Time Start: 1787-08-03T03:00:00 * Date/Time End: 1787-09-08T01:00:00
Event(s):
La_Boussole_17870803_NIWI-F-1573 * Latitude Start: 51.320000 * Longitude Start: 141.350000 * Latitude End: 51.300000 * Longitude End: 159.330000 * Date/Time Start: 1787-08-03T00:00:00 * Date/Time End: 1787-09-08T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: La Boussole (Exploration Ves), Voyage: Castries - Avatscha, 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 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 State of the sea descriptionState sea descr
21 GustsGusts1 If wind gusts are reported
22 Precipitation/RainRain1 If rain was reported
23 FogFog1 If fog was reported
24 Snow typeSnow1 If snow was reported
25 ThunderThunder1 If thunder and or lightning was reported
26 HailHail1 If hail was reported
27 Sea iceSea ice1 If sea-ice or icebergs were reported
28 IdentificationIDCLIWOC 2.1 line number
Size:
684 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 
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 
State sea descr
21 
Gusts
(1 If wind gusts are reported)
22 
Rain
(1 If rain was reported)
23 
Fog
(1 If fog was reported)
24 
Snow
(1 If snow was reported)
25 
Thunder
(1 If thunder and or lightning...)
26 
Hail
(1 If hail was reported)
27 
Sea ice
(1 If sea-ice or icebergs were...)
28 
ID
(CLIWOC 2.1 line number)
1787-08-03T03:0051.32141.351581.21013.817.3LE FOND A AUGMENTÉ, EN ALLANT AU SUD, JUSQUÀ 45 BRASSES013.80280009.00SSW-SSETRÈS-FAIBLE0000000132176
1787-08-04T03:0050.80140.681581.21013.817.8LA TERREW11N3014.20280009.00SSW-SSETRÈS-FAIBLEBEAU0000000132177
1787-08-05T03:0050.58141.501809.31009.012.5010.00271104.00SBON FRAISLE TEMPS BRUMEUX0000000132178
1787-08-06T03:0050.30141.071809.3996.617.5014.00270703.00SBON FRAISNÉBULEUX0000000132179
1787-08-07T03:0050.10141.3520315.4995.416.3013.00270608.00SSWGRAND FRAIS0000000132180
1787-08-08T03:0049.22140.70681.21005.318.8LA CÔTE DE TARTARIES55WLE PIC LAMANONS48E015.00271002.00SSW, N, W, ENEGRAND FRAIS, VARIABLE, TRÈS-FAIBLE0000000132181
1787-08-09T03:0048.42141.2536015.41002.716.9LE PIC LAMANONN48E013.50270903.00NGRAND FRAISBEAU0000000132182
1787-08-10T03:0046.75141.4236015.41006.416.9LÎLE MONNERONS29WLE PIC BERNIZETN32E013.50271005.00NGRAND FRAISBEAULA MER UN PEU GROSSE0000000132183
1787-08-11T03:0045.95141.6536015.41010.818.8MOUILLÉ À DEUX LIEUES DE LA CÔTE, PAR 40 BRASSES, FOND DE SABLE (19:00)015.00271109.00NGRAND FRAISBEAU0000000132184
1787-08-12T03:0045.67141.950.01011.313.8011.00280002.00CALMENÉBULEUX0000000132185
1787-08-13T03:0045.35142.451801.01012.013.0LE CAP ANIVAN30ELE PIC DE LANGLES81W010.40280004.00SPRESQUE CALMENEBULEUX0000000132186
1787-08-14T02:0046.45144.051376.71010.614.4LE CAP ANIVAN9E211.50280000.00SEPETIT FRAISBEAU0000000132187
1787-08-15T02:0046.15145.281156.71015.815.6LE CAP ANIVAS84W212.50280106.00ESEPETIT FRAISBEAU0000000132188
1787-08-16T02:0046.33146.131159.31015.815.6212.50280106.00ESEBON FRAISDE LA BRUME0010000132189
1787-08-17T02:0046.15146.51471009.415.6212.50271105.00ESE-NENÉBULEUX0000000132190
1787-08-18T02:0045.95147.301481.21008.315.0212.00271102.00N-SSEBETRÈS-FAIBLEDE LA BRUME PAR INTERVALLES0010000132191
1787-08-19T02:0046.32148.681849.31004.516.3413.00270908.00SBON FRAISNEBULEUX0000000132192
1787-08-20T02:0046.45150.482299.31007.116.3413.00271007.00SWBON FRAISNUAGEUX0000000132193
1787-08-21T02:0047.17151.261391.21009.413.5410.80271105.00SETRÈS-FAIBLEDE LA BRUME0010000132194
1787-08-22T02:0047.23151.111846.71012.015.0412.00280004.00SPETIT FRAISDE LA BRUME0010000132195
1787-08-23T02:0047.20150.481841.01014.016.3413.00280101.00SSW-SFAIBLELA BRUME TRÈS-ÉPAISSE0010000132196
1787-08-24T02:0047.37151.581846.71009.413.5UNE DES ÎLES DES QUATRE-FRÈRESS2W410.80271105.00SPETIT FRAISDE LA BRUME0010000132197
1787-08-25T02:0047.47152.111626.71008.312.5410.00271102.00SSEPETIT FRAISDELÀ BRUME0010000132198
1787-08-26T02:0047.33152.132741.21007.113.8411.00271007.00SSE-N, WTRÈS-FAIBLE, VARIABLE, TRÈS-FAIBLEDE LA BRUME0010000132199
1787-08-27T02:0047.18152.382526.71009.811.8LÎLE MARAKINAN76E49.40271106.00WSWPETIT FRAIS0000000132200
1787-08-28T02:0047.12152.06271.01007.511.8IN HET JOURNAAL STAAT VOOR DE LUCHTDRUK: 27-01-0849.40271008.00SW-N-W-NNEPRESQUE CALME0000000132201
1787-08-29T02:0046.32152.31496.71015.08.847.00280104.00E-NEPETIT FRAISCOUVERT0000000132202
1787-08-30T02:0045.95153.502536.71015.010.058.00280104.00WSWPETIT FRAISCOUVERT0000000132203
1787-08-31T02:0046.08154.632536.71015.013.5510.80280104.00WSWPETIT FRAISDE LA BRUME0010000132204
1787-09-01T02:0047.05156.3020815.41013.615.0512.00280100.00SSWGRAND FRAISDE LA BRUME0010000132205
1787-09-02T01:0048.48157.8627715.41010.512.479.90271108.00WGRAND FRAISBRUMEUX0000000132206
1787-09-03T01:0049.27158.713001.21016.611.379.00280200.00WNWTRÈS-FAIBLEBRUMEUX0000000132207
1787-09-04T01:0050.38159.2023215.41018.412.5710.00280205.00SWGRAND FRAISNUAGEUX0000000132208
1787-09-05T01:0050.27160.002329.31010.512.379.80271108.00SWBON FRAISDE LA BRUME0010000132209
1787-09-06T01:0052.43159.932779.31002.711.0A MIDI, LE 6, LE VOLCAN RESTAIT AU N38O78.80270903.00WBON FRAISNUAGEUX0000000132210
1787-09-07T01:0052.78159.283226.71006.09.8LENTRÉE DE LA BAIE DAVATSCHA RESTAIT AU N50O, ET LE VOLCAN AU N5O.77.80271004.00NWPETIT FRAISBEAU0000000132211
1787-09-08T01:0053.02159.031420.0AU MOUILLAGE DAVATSCHA, DEPUIS LE 8 SEPT. 1787 JUSQUAU 30. A 7 HEURES DU SOIR, LE 7, MOUILLÉ DANS LA BAIE DAVATSCHA, PAR 7 BRASSES, FOND DE VASE7SECALME0000000132212