@article{fdi:010057020, title = {{P}reformed and regenerated phosphate in ocean general circulation models : can right total concentrations be wrong ?}, author = {{D}uteil, {O}. and {K}oeve, {W}. and {O}schlies, {A}. and {A}umont, {O}livier and {B}ianchi, {D}. and {B}opp, {L}. and {G}albraith, {E}. and {M}atear, {R}. and {M}oore, {J}. {K}. and {S}armiento, {J}. {L}. and {S}egschneider, {J}.}, editor = {}, language = {{ENG}}, abstract = {{P}hosphate distributions simulated by seven state-of-the-art biogeochemical ocean circulation models are evaluated against observations of global ocean nutrient distributions. {T}he biogeochemical models exhibit different structural complexities, ranging from simple nutrient-restoring to multi-nutrient {NPZD} type models. {W}e evaluate the simulations using the observed volume distribution of phosphate. {T}he errors in these simulated volume class distributions are significantly larger when preformed phosphate (or regenerated phosphate) rather than total phosphate is considered. {O}ur analysis reveals that models can achieve similarly good fits to observed total phosphate distributions for a very different partitioning into preformed and regenerated nutrient components. {T}his has implications for the strength and potential climate sensitivity of the simulated biological carbon pump. {W}e suggest complementing the use of total nutrient distributions for assessing model skill by an evaluation of the respective preformed and regenerated nutrient components.}, keywords = {}, booktitle = {}, journal = {{B}iogeosciences}, volume = {9}, numero = {5}, pages = {1797--1807}, ISSN = {1726-4170}, year = {2012}, DOI = {10.5194/bg-9-1797-2012}, URL = {https://www.documentation.ird.fr/hor/fdi:010057020}, }