Files in the Dataset have been checked for format consistency, and merged into a single, integrated, downloadable file.
Download Entire Dataset Submit Data For This Cruise How to Cite DatasetCCHDO-1.0 CF netCDF files converted from bottle exchange file
CCHDO-1.0 CF netCDF files converted from ctd exchange file
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
There is not enough information to know where this file should go in the timeline.
I just put 2 docs for the ATAS cruises in my whpo directory:
/home/jkappa/public_html/ATAS_1982 TAS cruise report.pdf
/home/jkappa/public_html/ATAS_1981 NAS cruise report.pdf
They can go online right away. They are just scans of the original hard copy. Kimberly is typing them, since we both decided that would be faster/easier than trying to use the OCR software in this case.
Once typed, I will make a better set of PDF and text files.
NAS Leg1 notes
Original bottle data from CDIAC website Feb 10, 2006.
http://cdiac.ornl.gov/oceans/datmet.html
TTO_1981_recalc_DIC_ALK.csv
Contains pressure, temperature, salinity, nutrients, alkalinity and total carbon.
No machine readable data available from SIO/ODF.
Helium tritium merge file: nas_he3-tu.orig.Z from WHOI P.I.: W.J. Jenkins
Received from J.L.Reid office Jan 19, 2006.
Added missing NB 69 from PACODF data report SIO Ref. #86-15
Tritium merge file: nas1-7.c14.orig.Z Believed to be from Univ. of Miami; P.I.: H.G Ostlund
Received from J.L.Reid office Jan 19, 2006.
No Miami rosette sample data for Leg 1.
Notes for Leg1:
Temperature for Station 2, sample 101, 14db is Reversing Thermometer not CTD temperature and
and appears 3 deg low.
Original CTD data from NODC Mar 8, 2006 ocldb1141845224.17339.CTD.csv.gz
Low Temperature and Salinity on Station 2 above 120db are as shown in NODC data. Left as is.
WHOI Helium Isotope Lab
Data Release #3.0 August 31, 1989
Tritium and 3He from TTO-NAS and NATS 1981
Dear Colleague,
The files on this disk (TTO.DAT and NAT.DAT) are a listing of
tritium, helium and hydrographic data taken on two expeditions which
took place in the summer of 1981. The TTO North Atlantic Survey took
place on the KNORR on seven legs with a variety of chief scientists
(see the data report published by Scripps Institution of Oceanography,
ref SIO No. 86-15). The NATS (North Atlantic Tracer Section) data
(AT-109, legs 1-3) were taken with C.Wunsch, H.Stommel and D.Roemmich
as chief scientists. We are indebted to all for their help. This
work was supported by the National Science Foundation, grants No.
OCE79-21378 and OCE81-17998. You are free to use this data as you see
fit, but an acknowledgement of its source would be appreciated in any
resulting publications.
There are a total of 3235 tritium and 2893 helium measurements.
The data are organized as simple ascii files with two kinds of records
in a repeating pattern: a station header record, followed by a number
of depth records. Ancillary hydrographic information is included for
your convenience only, and we make no claim as to its accuracy. Cast
and bottle numbers are included to permit referencing the actual
hydrographic data released by the PACODF group. We present the
helium-3 data in two "units" for use at your own discretion. Null
values are indicated as -99. We have made every attempt to ensure that
there are no errors in the data (eg due to mis-labelling), but if you
find any "fliers", please notify us (telemail W.Jenkins) of the cast
and bottle number and what the problem appears to be, and we will
investigate. Don't forget to include the data release number.
The data can be read by the following fortran statements (contained in the
file "test.for"):
open(unit=3,file='TTO.DAT',status='old')
100 read(3,110,end=300)ista,ndeps,stalat,stalon,id,im,iy
110 format(2i3,2f8.3,3i3)
do 200 i=1,ndeps
read(3,120)icast,ibott,pres,temp,salt,oxy,trit,sigt,he3,del3,che
120 format(2i2,f6.0,2f8.3,f5.0,3f7.2,f7.1,f7.2)
200 continue
go to 100
c
c .................................
c
300 close(unit=3)
c
c
The program test.for has been succesfully used under both SUN OS v4.0
and Microsoft (MSDOS) v5.0 fortran compilers.
The variables read are
STATION HEADER:
ista station number
ndeps number of depths to be read
stalat station latitude (N positive) in decimal degrees
stalon station longitude (W positive) in dec. degrees
id,im,iy station date (day, month, year)
DEPTH RECORDS:
icast cast number
ibott bottle number
pres pressure in decibars
temp in situ temperature (deg. C)
salt salinity (PSU)
oxygen dissolved oxygen (uM/Kg)
trit tritium (T.U.) at time of station
sigt uncertainty in tritium (T.U.)
he3 excess helium-3 (T.U.)*
del3 helium isotope ratio anomaly (permil)**
che helium concentration (ncc/g)***
* the excess helium-3 is computed according to Jenkins (1987).
Uncertainty is .035 T.U.
** relative to the atmospheric ratio. Uncertainty is 1.5 permil.
*** uncertainty is 0.1 ncc/g [ncc = 10^-9 cc(STP)].
The data reported here are the result of the work of a number of
people (both present and past) in the Helium Isotope Laboratory. They are
Scot P. Birdwhistel
Richard D. Boudreau
Marcia W. Davis (Pratt)
Philip A. DesJardin
Peggy A. Dickinson (O'Brien)
Heidi Hinds
William J. Jenkins
Danuta G. Kaminski
Dempsey E. Lott III
Gary Newhart
References:
Jenkins, W.J. (1987) 3H and 3He in the Beta Triangle: observations
of gyre ventilation and oxygen utilization rates. J. Phys.
Oceanogr. 17, 763-783.
Lott, D.E. and W.J. Jenkins (1984) An automated cryogenic charcoal
trap system for helium isotope mass spectrometry. Rev. Sci.
Instrum. 55, 1982-1988.
TTO NAS TAS TRITIUM and C14 DATA 87/04/07
DOS DISK
The files on the floppy disk include only samples on which Cl4 or T (or
both) have been measured. Missing data are indicated by blanks. Files are
ASCII characters, forming integers of the actual numbers, multiplied by FACTOR
below.
File format is DOS, as it comes on the IBM PC. One long string of
characters as follows:
BYTES WIDTH DATA, (right justified) FACTOR
1-6 6 Station number 1
7-12 6 Cast, Niskin bottle number 1
13-18 6 Depth in m or pressure in dB, supplied by PACODF 1
19-24 6 Potential temp., see pg. 5 in Data Report 15 1000
25-30 6 Salinity, in S-units, supplied by PACODF 1000
31-36 6 Sigma Theta, see pg.5 in Data Report 15 1000
37-42 6 TU in old scale at time of sampling 1000
43-48 6 Error, 1 Sigma, in TU 1000
49-54 6 TCO2 in moles/kg. Note: On TTO there are TCO2 1000
data available on more samples, not listed here
55-60 6 dC13 (o/oo) vs PDB, of our CO2 preparations 1000
61-68 8 DC14 in internationally adopted scale 1000
69-72 4 Gerard sampler # 1
73-78 6 Available -
79 1 CR -
80 1 LF -
The Tritium Lab is responsible only for the TU, eTU,dC13 and DC14 data to
be accurate. For up-to-date hydrography, TCO2, and other parameters, please
contact Scripps Data Facility.