Accession Number:

ADA482103

Title:

Multi-Sensor Improved Sea Surface Temperature (MISST) for GODAE

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV

Report Date:

2004-01-01

Pagination or Media Count:

7.0

Abstract:

The Multi-sensor Improved Sea Surface Temperatures MISST for the Global Ocean Data Assimilation Experiment GODAE project intends to produce an improved, high-resolution, global, near-real-time NRT, sea surface temperature analysis through the combination of satellite observations from complementary infrared IR and microwave MW sensors and to then demonstrate the impact of these improved sea surface temperatures SSTs on operational ocean models, numerical weather prediction, and tropical cyclone intensity forecasting. SST is one of the most important variables related to the global ocean-atmosphere system. It is a key indicator for climate change and is widely applied to studies of upper ocean processes, to air-sea heat exchange, and as a boundary condition for numerical weather prediction. The importance of SST to accurate weather forecasting of both severe events and daily weather has been increasingly recognized over the past several years. Despite the importance and wide usage of operational SST analyses, significant weaknesses remain in the existing operational products. The improved sensors on the Terra, Aqua, and EnviSAT-1 satellites, in conjunction with previously existing sensors on several other US Navy, NASA, and NOAA satellites, provide the opportunity for notable advances in SST measurement. In addition to more frequent coverage for increased temporal resolution, these sensors permit the combination of highly complementary IR and MW retrievals. While clouds, aerosols, and atmospheric water vapor affect IR retrievals, these phenomena have little impact on MW retrievals. Characteristically, IR SST provides high spatial resolution 1 km at nadir but poorer coverage with the presence of clouds.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE