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2.1 Atmosphere and land surface
| Model | NCEP Global Forecast System |
|---|---|
| Horizontal resolution and grid | T128 (~ 1x1 Deg Lat/Lon) |
| Atmosphere vertical resolution | 64 Levels (sigma-pressure hybrid coordinates) |
| Top of atmosphere | 0.02 hPa |
| Soil levels |
| (layers) | 4 Layer 1: 0-10 cm |
|---|
|
|
|
cm | |
| Time step | 10 minutes |
|---|
Detailed documentation:
2.2 Ocean and cryosphere
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5. Forecast system and hindcasts
| Forecast frequency | Every day |
|---|---|
| Forecast ensemble size | Four/day |
| Hindcast years | 1981-2010 |
| Hindcast ensemble size | Four/ |
| start date | |
| Hindcast start dates | Every 5 days (see full list below) |
|---|---|
| On-the-fly or static hindcast set? | Static hindcast |
6. Other relevant information
The available hindcast start dates are grouped into each nominal start date as follows:
Nominal
Dates used for C3S products Additional dates
JANUARY 12, 7 and 2 December FEBRUARY 31, 26, 21 and 16 January 11 and 6 January MARCH 25, 20, 15 and 10 February 5 February APRIL 1 April; 27, 22 and 17 March 12, 7 and 2 March MAY 1 May; 26, 21 and 16 April 11 and 6 April JUNE 31, 26, 21 and 16 May 11 and 6 May JULY 30, 25, 20 and 15 June 10 and 5 June AUGUST 30, 25, 20 and 15 July 10 and 5 July SEPTEMBER 29, 24, 19 and 14 August 9 and 4 August OCTOBER 28, 23, 18 and 13 September 8 and 3 September NOVEMBER 28, 23, 18 and 13 October 8 and 3 October DECEMBER 27, 22, 17 and 12 November 7 and 2 November
| Start Month |
|---|
| Available Start Days | |
|---|---|
| January | 1, 6, 11, 16, 21, 26 and 31 |
| February | 5, 10, 15, 20 and 25 |
| March | 2, 7, 12, 17, 22 and 27 |
| April | 1, 6, 11, 16, 21 and 26 |
| May | 1, 6, 11, 16, 21, 26 and 31 |
| June | 5, 10, 15, 20, 25 and 30 |
| July | 5, 10, 15, 20, 25 and 30 |
| August | 4, 9, 14, 19, 24 and 29 |
| September | 3, 8, 13, 18, 23 and 28 |
| October | 3, 8, 13, 18, 23 and 28 |
| November | 2, 7, 12, 17, 22 and 27 |
| December | 2, 7, 12, 17, 22 and 27 |
1 January; 27, 22 and 17 December
7. Where to find more information
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Saha, S. and Coauthors, 2014: The NCEP Climate Forecast System Version 2 J. Climate, 27, 2185–2208. doi: http://dx.doi.org/10.1175/JCLI-D-12-00823.1
httphttps://www.ral.ucar.edu/researchsites/default/landfiles/technologypublic/lsmproduct-tool/unified-noah-lsm/Noah_LSM_USERGUIDE_2.7.1.pdf
Zobler, L. 1986. A World Soil File for Global Climate Modelling. NASA Technical Memorandum 87802. NASA Goddard Institute for Space Studies, New York, New York, U.S.A.
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