Citation:

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

Project(s):

Climatological Database for the Worlds Oceans: 1750-1854 (CLIWOC)

Funding:

Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090 : Climatological Database for the Worlds Oceans: 1750-1854

Coverage:

Median Latitude: 16.934167 * Median Longitude: 73.143333 * South-bound Latitude: 15.560000 * West-bound Longitude: 72.690000 * North-bound Latitude: 18.930000 * East-bound Longitude: 73.670000

Event(s):

Tartar_17510217_NMM_ADM/L/T17 * Latitude Start: 15.560000 * Longitude Start: 73.670000 * Latitude End: 18.500000 * Longitude End: 72.820000 * Campaign: * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tartar (Frigate), Start of voyage: 1751-02-28, End of voyage: 1751-03-11, Voyage: Goa Road - Bombay, 1st Observer: William Brett (Captain), Company: Royal Navy, Other ship information: 20G 442BM

Parameter(s):

#	Name	Short Name	Unit	Comment
1	Date/time start	Date/time start
2	LATITUDE	Latitude		Geocode
3	LONGITUDE	Longitude		Geocode
4	Wind direction	dd	deg	Wind 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.
5	Wind speed	ff	m/s	calculated from the descriptive terms of wind force given in the observations
6	Landmark	Landmark		Name of first landmark
7	Bearing	Bearing		Bearing of the first landmark
8	Distance to landmark	Distance	arbitrary units	Distance to the first landmark
9	-	-		1 If position is considered to be coastal (in port or near coastal disturbances)
10	Declination	Decl	deg	It 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.
11	Wind direction description	Wind dir descr		All reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
12	Wind force description	Wind force descr		All reported wind forces on this day
13	Present weather	ww		Weather description
14	State of the sea description	State sea descr
15	Clearness	Clearness
16	Gusts	Gusts		1 If wind gusts are reported
17	Precipitation/Rain	Rain		1 If rain was reported
18	Fog	Fog		1 If fog was reported
19	Snow type	Snow		1 If snow was reported
20	Thunder	Thunder		1 If thunder and or lightning was reported
21	Hail	Hail		1 If hail was reported
22	Sea ice	Sea ice		1 If sea-ice or icebergs were reported
23	Identification	ID		CLIWOC 2.1 line number

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

211 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Date/time start	2 Latitude	3 Longitude	4 dd [deg]	5 ff [m/s]	6 Landmark	7 Bearing	8 Distance [arbitrary units]	9 -	10 Decl [deg]	11 Wind dir descr	12 Wind force descr	13 ww	14 State sea descr	15 Clearness	23 ID
1751-02-28T07:00	15.56	73.67	88	6.7	THE ALLGUARD	ESE	5		-2	WSW, NW, NE, ENE, E	MODERATE			HAZY	250214
1751-03-01T07:00	15.64	73.56	66	6.7	THE VINGORLA				-2	WSW, W, NW, NBE, ENE	MODERATE			HAZY	250215
1751-03-02T07:00	15.72	73.46	43	1.0	THE HIGH LAND OF VINGALORE	E1/2N	6		-2	NW, NWBN, NNW, NNE, NE	LIGHT AIRS	FAIR			250216
1751-03-03T07:00	15.80	73.35	178	1.0	THE EXTREMES OF THE LAND	EBN	10		-2	N, NWBW, NW, SSW, S	LIGHT AIRS	FAIR			250217
1751-03-04T07:00	16.19	73.26	223	2.6	CAPE DOBBS	EBS	5		-2	SW, WBN, W, CALM, SW	LITTLE WIND WITH CALMS			HAZY	250218
1751-03-05T07:00	16.58	73.16	361	2.6	CAPE Z	ENE	4		-2	WBS, W, WBN, CALM	LITTLE WIND WITH CALMS				250219
1751-03-06T07:00	16.97	73.07	358	2.6	DABULL HEAD	EBN1/2N	5		-2	WBN, NWBW, NW, NNW, N	LITTLE WINDS			HAZY	250220
1751-03-07T07:00	17.37	72.98	313	9.3	SOUTHERN ROOK FORT	EBN1/2N	3		-2	NBW, NNW, NWBN, NE, NW	FRESH BREEZES		LARGE SWELL		250221
1751-03-08T07:00	17.76	72.88	32	6.7	ROGAPORE	NE	10		-2	WBN, WNW, NW, NBE, EBN, NEBN	MODERATE			HAZY	250222
1751-03-09T07:00	18.15	72.79	66	6.7	CHOULE ISLAND (RAGAPORE RIVER)	NEBE (SE)	3		-2	SSW, SWBW, WSW, WBN, ENE	MODERATE			HAZY	250223
1751-03-10T07:00	18.54	72.69	279	6.7	HANRY ISLAND (CANRY)	EBN (E1/2N)	5		-2	WNW, NWBW, WSW, WBN	MODERATE			HAZY	250224
1751-03-11T07:00	18.93	72.85	88	9.3				1	-2	NW, N, NE, E	FRESH BREEZES	FAIR			250225