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Comprehensive Assessment of Land Model Reanalyses for Water and Energy Balance (1961-1990)

This study analyzes various land model reanalyses focused on water and energy balance from 1961 to 1990. Key data sources include the VIC model (Maurer et al., 2002), which offers US-based observations from 1950 to 2000, and the Global Noah model (Fan et al., 2003) analyzing data from 1948 to 1998. Additional insights come from several reanalysis datasets, such as NCEP/DOE and CPC, covering a broad temporal range. The aim is to validate the reanalyses using monthly and hourly data to enhance understanding of land-atmosphere interactions.

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Comprehensive Assessment of Land Model Reanalyses for Water and Energy Balance (1961-1990)

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  1. Mon W P E R+G P-E-R-G1 581.2 (294.2) 51.5 5.6 31.8 14.22 592.5 (304.0) 49.6 10.4 32.9 6.33 600.0 (308.8) 62.3 24.7 38.8 -1.24 595.6 (302.0) 59.0 42.8 30.2 -14.15 582.8 (289.8) 70.1 64.7 20.9 -15.56 564.6 (276.8) 66.3 75.6 14.0 -23.37 538.4 (260.1) 64.5 77.7 10.4 -23.78 520.1 (250.0) 62.3 67.3 9.0 -14.19 514.3 (248.3) 61.2 49.1 8.9 3.310 520.2 (253.3) 51.5 31.8 9.0 10.811 539.8 (266.8) 57.9 14.0 13.4 30.512 565.8 (282.6) 57.7 4.7 26.7 26.3Year 559.0 (278.1) 59.5 39.0 20.5 0.0averaged over 125W-75W, 30N-48N, 1961-1990 Noah land mdl (Fan et al 2002,2003)

  2. Land ‘Reanalyses’ (for validation) include:VIC (Maurer et al 2002):1) US 1950-2000, 3 hourly, 1/8th degree, water and energy balance2) GlobalNoah (Fan et al 2003)1) US 1948-1998, hourly, 1/8th degree, water and energy balance, 25plus variables2) global, not yet too many yearsMosaic (Houser; Koster )1) US2) GlobalOther?Renanalysis I, CDAS, 1948-presentReanalysis Ib (II, NCEP/Doe), 1979-presentCPC Leaky Bucket (Huang et al 1996):1) US 1932-present, monthly, 344 CD, water balance only2) global land 1948-present, monthly, 1/2 degree, water balance only

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