Files in the Dataset are the data for this cruise. They are updated when new data are submitted or as needed.Download Entire Dataset Submit Data For This Cruise
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.