Main.CurrentWorkIceberg History
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The pattern for this field is derived from that used in [=HadCM3=], scaled to match the FAMOUS salinity drift. I didn't repeat the process by which the [=HadCM3=] field was derived using various regional components. This is included in the Summer '07 FAMOUS release. In release versions of FAMOUS, up to XDBUA, salinity drift is still not zero, as the snow build up on land/ice is not constant - after 200 years running with the new iceberg field the original positive salinity drift has become a very small negative drift. In its present form the iceberg field is thus not suitable for really extended runs. It's probably inappropriate for paleoruns anyway, seeing as it's derived for modern conditions. I've got a re-calibrated version lying around that produces a rather smaller drift in the 1860 control climate on QUEST if anyone wants it.
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The pattern for this field is derived from that used in [=HadCM3=], scaled to match the FAMOUS salinity drift. I didn't repeat the process by which the [=HadCM3=] field was derived using various regional components. This is included in the Summer '07 FAMOUS release. In release versions of FAMOUS, up to XDBUA, salinity drift is still not zero, as the snow build up on land/ice is not constant - after 200 years running with the new iceberg field the original positive salinity drift has become a very small negative drift. In its present form the iceberg field is thus not suitable for really extended runs. It's probably inappropriate for paleoruns anyway, seeing as it's derived for modern conditions. I've got a re-calibrated version lying around that produces a rather smaller drift in the 1860 control climate on QUEST if anyone wants it. This field has been recalibrated again for the XFXWB climate.