****************************************************************************************************************
$BBh(B 130 $B2s(B $BBg5$3$MN7wJ*M}7O%;%_%J!<(B $B$N$*$7$i$;(B
$BF|!!;~!'(B 12$B7n(B 11$BF|(B($BLZ(B) $B8aA0(B 9:30
$B>l!!=j!'(B$BDc292J3X8&5f=j(B $B?7Eo(B 3$B3,(B $B9VF2(B
$BH/I=
$BBj!!L\!'(BHow good are ocean carbon cycle models?
$BH/I=
****************************************************************************************************************
How good are ocean carbon cycle models? ($B>>K\(B $B9nH~(B) $BH/I=MW;](B :
Until the early 1990s, ocean carbon cycle models have been the primary tool to learn how anthropogenic carbon emitted to the atmosphere was partitioned among the atmosphere, ocean, and by inference land. However, the advent of atmospheric oxygen abundance measurements made ocean carbon cycle models irrelevant in this regard. One may further question the utility of ocean carbon cycle models for future carbon cycle studies, given the recent development of climate-carbon coupled models. Here I will argue that ocean carbon cycle models are nevertheless useful in understanding the spatially heterogeneous uptake and storage of anthropogenic carbon. At the same time, I will demonstrate that currently available ocean carbon cycle models vary widely in how well they can simulate the uptake of anthropogenic tracers, including carbon, bomb radiocarbon, and chlorofluorocarbons. Finally, means to quantitatively intercompare and evaluate model skill is discussed.
$B3%?'Bg5$$NJ?9U>uBV$NB@M[Dj?t0MB8@-(B ($B@PEO(B $B@5
$BuBV!&ItJ,E`7k>uBV$K2C$(K=(B $BAv29<<>uBV$r4^$`B?=E2r$,B8:_$9$k$3$H$r<($7$?(B. GCM $B$G$O(B, $BI96-3&0^EY$,(B 20 $BEY$h$j$bDc0^EY$KB8:_$9$kItJ,E`7k>uBV$OF@$i$l$J$+$C$?(B. $B$3$N$3$H$O(B, $B=>Mh(B EBM $B$K$h$k8&5f$G5DO@$5$l$F$-$?Bg6K4'IT0BDj$,(B GCM $B$G$b5/$3$k$3$H$r(B $B<(:6$7$F$$$k(B. GCM $B$NI96-3&$O(B, EBM $B$N7k2L$KHf$Y$F$h$jDc0^EY$^$GE~C#$9$k(B. $BI96-3&IU6a$K$*$1$k6E7k2CG.$N$?$a$KBg6K4'IT0BDj$,5/$3$j$K$/$/$J$C$F$$$k(B.
-----
$BO"Mm@h(B