FN Archimer Export Format
PT J
TI Determination of discrete sampling locations minimizing both the number of samples and the maximum interpolation error: Application to measurements of carbonate chemistry in surface ocean
BT 
AF Guglielmi, Véronique
   Touratier, Franck
   Goyet, Catherine
AS 1:1,2;2:1,2;3:1,2;
FF 1:;2:;3:;
C1 Espace-Dev, UPVD, Perpignan, France
   Espace-Dev, Univ. Montpellier, UPVD, IRD, Montpellier, France
C2 UNIV PERPIGNAN, FRANCE
   UNIV MONTPELLIER, FRANCE
IF 2
TC 2
UR https://archimer.ifremer.fr/doc/00821/93250/99876.pdf
LA English
DT Article
CR MINERVE
   MINERVE 2010/2011
BO L'Astrolabe
DE ;Underway measurements;Sampling strategy;Interpolation error
AB Over the past three decades, a variety of programs have conducted extensive measurements of ocean properties at fixed stations throughout the water column, as well as in the surface ocean via oceanographic ships and ships of opportunity. Ships of opportunity were particularly used to determine the air-sea CO2 fluxes from automated measurements of sea-surface temperature, salinity, and CO2 fugacity. These underway measurements, often recorded at a frequency of every minute, generate large data files that need to be quality controlled, stored and analyzed. For practical use these data are often binned by 1° latitude x 1° longitude. Unfortunately, by doing so, there is a consequential loss of accuracy for these data sets. Here, using the original 2010 underway data sets of sea-surface temperature, sea-surface salinity, total alkalinity and total inorganic carbon, along the cruise track from Hobart (Tasmania) to Dumont D'Urville (Antarctica), we show what would had been a more appropriate sampling strategy for each of these properties, maintaining their full measurement accuracy, while improving their interpolation accuracy. Furthermore, this analysis illustrates a general methodology for objectively determining, under suitable conditions, the appropriate locations for each property measurement according to a required accuracy. These results should greatly facilitate future cruise preparation and reduce the cost of measurements, while improving their scientific value. 
PY 2023
PD FEB
SO Journal Of Sea Research
SN 1385-1101
PU Elsevier BV
VL 191
UT 000921958200001
DI 10.1016/j.seares.2023.102336
ID 93250
ER

EF