Why is the data in the data set NSIDC-0630 version 2 incomplete?

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kkkyq
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Why is the data in the data set NSIDC-0630 version 2 incomplete?

by kkkyq » Tue Feb 25, 2025 12:37 am America/New_York

The data in the data set NSIDC-0630 version 2 is only after 2021. Why is there no data before?

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NSIDC - amyygilliland
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Re: Why is the data in the data set NSIDC-0630 version 2 incomplete?

by NSIDC - amyygilliland » Tue Feb 25, 2025 5:05 pm America/New_York

Hi,

Thanks for your interest. We're currently reprocessing Version 1 NSIDC-0630 data to Version 2 NSIDC-0630 data, so that's why the data appears incomplete. This reprocessing occurs in phases, with data from different sensors and years made available over time beginning in May 2024. Data from all sensors for all of 2021-2023 and January through March of 2024 will become available first, followed by data from AMSR2 for May 2012 through December 2023. Next, all sensors will undergo forward processing, followed by back processing. While this reprocessing effort is underway, users are strongly discouraged from
combining Version 1 and Version 2 data. The two versions have undergone different calibration
rendering them incompatible. When reprocessing is complete and all Version 2 data is available, Version
1 data will no longer be accessible. For more information on the version history of NSIDC-0630 please see this user guide: https://nsidc.org/sites/default/files/documents/user-guide/nsidc-0630-v002-userguide.pdf

Kind regards,
Amy

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