Author Topic: Barometers, Instrumentation and Specifications by Ship - Phase 3  (Read 34172 times)

Randi

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Barometers, Instrumentation and Specifications by Ship - Phase 3
« on: November 13, 2012, 11:18:23 pm »
Please put links and information about ship's instruments in this topic.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_010_0.jpg

Barometer changes and CORRECTIONS required to balance readings:

Description of the Instruments used in making the
Meteorological Observations recorded in the columns of the Log Book.

Barometer
The standard was a Mercurial Barometer made by Adie,
London, No. 1231, and was placed in the
State-room of the Commanding Officer.
 For convenience of observation a Holosteric Aneroid Barometer
made by T.S. & J.D. Negus, New York (without numbers) was placed
in the open air on the outside of the Cabin bulkhead and
remained there from June 25th to 4.30 PM September 25th 1879.
The entries in the Log Book between these dates are readings
of this Baromoeter: and a general correction of one tenth of
an inch (0.1") subtractive must be applied to these to make
them agree with the Standard Mercurial at similar tempera
tures.
 At 4.30 PM September 25th - 1879, the said Aneroid was
moved to within the Cabin, and set by comparison with
Mercurial Standard to a reading reduced to a temperature of
32 degrees Fahrenheit.
 At 2 PM September 27th - 1879 it was set to comparison
with Mercurial Standard to a reading reduced to a tempera
ture of 46 degrees Fahrenheit. The reading of this Aneroid was
discontinued at midnight October 31st - 1879.
 From 1 AM November 1st 1879 to Midnight January 9th 1880
the readings for the Log were made from Aneroid Barometer
No. 28051 which had been set by comparison with Mercurial
Standard to a reading reduced to 32 degrees Fahrenheit.


http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_011_0.jpg

PLEASE could these thermometer notes go to the scientists - they include corrections to the various readings. Thank you:

Thermometers
The Standard was a Mercurial Thermometer N0. 4313 made by Green, New York.

Air Dry Bulb  Air Wet Bulb.
From June 25th to October 31st midnight, the Dry Bulb
was recorded from readings of Mercurial Thermometer N0 2009,
USN. made by JT Large, and which comparison with
Mercurial Standard requires a correction of eight tenths of
one degree (0.8 degrees) additive.  The Wet Bulb was recorded
from readings of a Mercurial Thermometer (without number)
made by JD Patten, Poultny, London, and which by
comparison with Mercurial Standard requires a correction  of
three and a half degrees (3 1/2 degrees) Subtractive.

From November 1st 1879. 1 AM to January 9th 1880,
Midnight, the Dry Bulb was recorded from readings of
Standard Mercurial thermometer made by Green, New york.

Water Surface.
These temperatures were recorded from readings of a
Mercurial Thermometer mad by JD Patten, Poultny,
London, which by comparison with Mercurial Standard
requires correction of two degrees (2 degrees) Subtractive.

Deep Sea Temperatures
At 1 fathom from the Lead. L Casella, London No 24415
At 16 fathom from the Lead. L Casella, London No 27110
At 30 fathom from the Lead. L casella, London No 25257

------------------------------------------------------
From Joan: Please note the Barometer page has been corrected to show 9th January 1880 towards the end. thank you.

I updated the Barometer page.
« Last Edit: November 19, 2012, 06:29:51 pm by randi_2 »

AvastMH

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #1 on: November 14, 2012, 01:38:56 pm »
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_011_1.jpg
Covers both sections below.


Jeannette's SG and Wind Force info:
----------------------------
Specific Gravities.
Water brought up by "Sigs~ Water Cups".
Salinometer Hydrometer weighted with red Sealing Wax,
marked "Tagliabue - New York - Specific Gravity Co." Fah.
Scale 1.020 to 1.031
Hydrometer (weighted with small shot), no name of maker
marked Specific Gravity Co "Fah."  Scale 1.000 to 1.030
------------------------------------------
Force of Wind.
From June 25th to October 31st 1879.  The force of the
wind as estimated and recorded according to the
Beaufort Scale.
From November 1st- 1879 1 AM to January 9th 1880
Midnight - the velocity of the wind was estimated and recorded
by the readings of an Anemometer, marked "I.P~. NY"
10 "Signal Service USA"
No. 120 "Signal Service USA"

« Last Edit: November 19, 2012, 06:10:09 pm by AvastMH »

navalhistory

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #2 on: November 19, 2012, 11:56:54 am »
Not sure what this area is about, but is this page on RN instruments, including barometers, of any use? http://www.naval-history.net/OxonMet.htm

Gordon

navalhistory

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #3 on: November 19, 2012, 11:57:31 am »
Not sure what this area is about, but is this page on RN instruments, including barometers, of any use? http://www.naval-history.net/OxonMet.htm

Gordon

Randi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #4 on: November 19, 2012, 12:02:22 pm »
This topic is primarily to tell the scientists what instruments are used on our ships, but your post is welcome.
No need for two copies though ;)

Maikel

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Randi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #6 on: November 27, 2012, 02:12:07 pm »
Rodgers:
BAROMETER CHANGE - please alert analysts

7 July 1881
For the 6 to 8 pm watch, they say "Registered mercurial barometer from 8pm"
The pressure at 7pm is 30.15
The pressure at 8pm is 30.00 - the following day seems to be with this barometer.

http://oldweather.s3.amazonaws.com/ow3/USS%20Rodgers/Rodgers_1881/b001of010_0043_0.jpg
http://oldweather.s3.amazonaws.com/ow3/USS%20Rodgers/Rodgers_1881/b001of010_0043_1.jpg


Clewi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #8 on: December 21, 2012, 09:24:57 am »
Jeanette

9.8.1879
Quote
8am to Mer Lost overboard one Cassella Miller Max and Min Thermometer.

25.9.1879
Quote
Aneroid bar. was moved at 4.30 [pm] and fell 29.51. The aneroid was moved from the outside of the Cabin Bulkhead to a place on the fore and aft-bulkhead in the cabin near the starboard door. on account of the thermometer attached which is not graduated below 10?

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_120_0.jpg


27.9.1879
Quote
At 2 Set aneroid to mercurial at temp 46?   The Barometer to which the Aneroid is set at a temperature of 46?, is made by Adie, London. No 1231 and hangs in State Room of Commanding Officer.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_122_0.jpg


26.10.1879
Quote
At 3 [PM] removed aneroid to the deck house. Reading unchanged in moving.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_152_0.jpg


1.11.1879

Wind force is measured in MPH instead of Beaufort scale! Air pressure is @32?F


Quote
A.M Winter routine commenced at 0 hours. The data for the columns of opposite page is obtained from the meteorological journal which is made from hourly observation by the officers of the ship.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_158_1.jpg

5.11.1879
Quote
At 4.30 ice opened near the observatory. Removed anemometer and other instruments to the ship.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_163_1.jpg

11.11.1879 ff
Quote
Thermometer on Cabin Bulkhead under housed awning
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_168_0.jpg

11.11.1879 [PM] Removed anemometer and other instruments from site to the ship.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_168_1.jpg
« Last Edit: December 27, 2012, 02:04:49 pm by Clewi »

Randi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #9 on: December 25, 2012, 09:01:42 pm »
 :o :o :o

Good catch! - I sent a note to Philip & Kevin so that they can process the data correctly.

Jeanette

...

1.11.1879

Wind force is measured in MPH instead of Beaufort scale!


Quote
A.M Winter routine commenced at 0 hours. The data for the columns of opposite page is obtained from the meteorological journal which is made from hourly observation by the officers of the ship.
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_158_1.jpg

That continues till the end - 4 June 1881 (in volumes 2, 3, and 4)
http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol004of004/vol004_118_1.jpg
« Last Edit: December 25, 2012, 11:22:26 pm by randi_2 »

Janet Jaguar

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #10 on: December 26, 2012, 12:21:37 am »
Beaufort scale was specifically designed to be judged by when the most common types of ship had to modify their sails.  Permanently caught in the ice, this may have come easier.  It is certainly more detailed.  And an interesting choice.
« Last Edit: December 26, 2012, 01:51:42 pm by Janet Jaguar »

Clewi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #11 on: December 26, 2012, 11:29:54 am »
Better add the info about the air pressure as well which is relative to 32?F. They have become a manned polar drift station and act accordingly, as it seems.

AvastMH

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #12 on: December 26, 2012, 11:40:31 am »
They expected to get caught in ice - partly in the hope that it would drift them to the Pole or lead to open waters leading to the Pole.

Craig

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #13 on: December 31, 2012, 12:18:32 pm »
09/10/1879 Arctic Steamer Jeannette - dry bulb and attatched thermometer readings reversed in PM.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_135_0.jpg

Randi

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Re: Barometers, Instrumentation and Specifications by Ship - Phase 3
« Reply #14 on: December 31, 2012, 12:22:25 pm »
09/10/1879 Arctic Steamer Jeannette - dry bulb and attatched thermometer readings reversed in PM.

http://oldweather.s3.amazonaws.com/ow3/final/USS%20Jeannette/vol001of004/vol001_135_0.jpg

In such cases, they should be transcribed into the correct locations.
http://forum.oldweather.org/index.php?topic=3191.msg51628#msg51628