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Intraseasonal Variations of Earth Radiation Budget : Ceres Eos / Terra Observations versus Ncep Reanalysis 2 Data
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wong, Takmeng Smith, Gregory L. |
| Copyright Year | 2003 |
| Abstract | Continuous monitoring of the Earth’s Radiation field at the top of the atmosphere (TOA) is essential for understanding climate and climate variability on Earth. To achieve this important science goal, the National Aeronautic and Space Administration (NASA) has begun the Clouds and the Earth’s Radiant Energy System (CERES) project (Wielicki, et al., 1996), which consists of Earth radiation budget instrument packages flying on three different satellites, beginning with Tropical Rainfall Measuring Mission (TRMM) satellite in November 1997, the Earth Observing System (EOS) Terra spacecraft in December 1999, and the EOS Aqua satellite in May 2002. After two months of initial routine checkup, the two CERES instruments (FM-1 and FM-2) installed aboard the NASA EOS Terra spacecraft begin taking scientific observations on February 26, 2000. They have since provided global broadband radiation measurements of outgoing longwave radiation (OLR) and reflected solar radiation (RSR) from the Earth for over three and half years. This paper will show preliminary comparisons of the intraseasonal variability, defined as variations with period of 20 to 60 days, of OLR and RSR deduced from the first year of the CERES/Terra observations against those derived from the NOAA/NCEP Reanalysis 2 system. Intraseasonal scale is a important component of the Earth climate system since it fills the gap between the traditional weather scale events and those associated with the longer climatic scale systems. Understanding the distribution of intraseasonal variation will improve both our knowledge of the Earth climate system and our ability to model them using global climate models. Section 2 will provide a general description of the data and analysis method used in this study. Results from regional, zonal, and global mean analyses will be discussed in section 3. Section 4 will give a summary of this work. ________________________________________ *Corresponding author address: Dr. Takmeng Wong, NASA Langley Research Center, Mail Stop 420, Hampton, VA 23681-2199; e-mail address: takmeng.wong@nasa.gov. 2. DATA ANALYSIS TECHNIQUE |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ams.confex.com/ams/pdfpapers/71129.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
