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By National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Panel on Options to Ensure the Climate Record from the NPOESS and GOES-R Spacecraft

In 2000, the nation's next-generation nationwide Polar-orbiting Operational Environmental satellite tv for pc method (NPOESS) software expected deciding to buy six satellites for $6.5 billion, with a primary release in 2008. via November 2005, even if, it turned obvious that NPOESS could overrun its price estimates by way of a minimum of 25 percentage. In June 2006, the deliberate acquisition of six spacecraft used to be decreased to 4, the release of the 1st spacecraft was once behind schedule till 2013, and several other sensors have been canceled or descoped in capability.To learn the affects of those adjustments, really these linked to weather examine, and how you can mitigate these affects, NASA and NOAA requested the NRC so as to add this job to its ongoing 'decadal survey', Earth technological know-how and purposes from house. The sponsors and the NRC agreed to handle this job individually and to base its research on a massive workshop. This booklet offers summaries of discussions on the workshop, which incorporated classes at the measurements and sensors initially deliberate for NPOESS and GOES-R; iteration of weather info files; mitigation ideas, together with the position of foreign companions; and cross-cutting matters.

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Additional info for Options to Ensure the Climate Record from the NPOESS and GOES-R Spacecraft: A Workshop Report

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These missions will certainly complement precision altimetry missions but cannot be relied on as alternate approaches to the continuation of the sea level record because of their non-optimal orbits for resolving ocean tides, less accurate orbit determination, and the lack of an associated well-balanced science program focused on sea level and ocean circulation. Although the present record will be continued by the follow-on mission to Jason—the OSTM/Jason-2 to be launched in 2008 as a joint mission of NASA, NOAA, Centre National d’Etudes Spatiales (CNES), and EUMETSAT—the next mission after OSTM/Jason-2 is not yet confirmed.

In particular, the VIIRS fire product can be improved by mitigating the aggregation of saturated pixels with non­saturated pixels, or at least providing a flag. In the future, a higher saturation level in the shortwave infrared window should be considered; this could be accomplished with a dual-gain sensor and likely not affect SST determinations. The inclusion of water-vapor-sensitive measurements that enable estimation of winds over the poles day and night is planned for the C3 VIIRS and should be pursued.

Htm. SUMMARY OF THE WORKSHOP SESSIONS 21 will overlap with TIM on SORCE. However, with the earliest flight of a remanifested TSIS on C2 in 2016, the likelihood of a measurement gap is high. Some participants noted that assimilation of total solar irradiance (TSI) and spectral solar irradiance (SSI) observations into the NPOESS operational environment would ensure eventual continuity of the measurements in the longer term, but with an increased risk of gaps in the near term. The participants considered several mitigation scenarios, which are summarized below.

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