Missing OLR from DLESyM #451
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Hi, I'm trying to run the DLESyM for climate simulation and I think OLR is missing in the current implementation. The original implementation from DLESyM repo provides OLR as input and output. Is this a different model than that is being used in the original DLESyM manuscript? |
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Replies: 2 comments
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Looping in @pzharrington for more information |
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Hi @ZhanxiangHua -- yes, the checkpoints in the earth2studio DLESyM model package are from versions of the model trained without the ISCCP OLR data, and thus are not identical to the model explored in the DLESyM arxiv manuscript. The reason is that ISCCP OLR data had some inconvenient aspects in terms of incomplete record and general accessibility, and the earth2studio DLESyM models were developed more with S2S forecasting in mind as an application. There are some newer versions of DLESyM being developed which include TTR (top net thermal radiation) from ERA5, which provides similar physical information as OLR; these are not yet released but it is expected they will be released later this year. |
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Hi @ZhanxiangHua -- yes, the checkpoints in the earth2studio DLESyM model package are from versions of the model trained without the ISCCP OLR data, and thus are not identical to the model explored in the DLESyM arxiv manuscript. The reason is that ISCCP OLR data had some inconvenient aspects in terms of incomplete record and general accessibility, and the earth2studio DLESyM models were developed more with S2S forecasting in mind as an application.
There are some newer versions of DLESyM being developed which include TTR (top net thermal radiation) from ERA5, which provides similar physical information as OLR; these are not yet released but it is expected they will be released later this…