Year |
Type |
Model |
Horizontal Resolution |
Layers |
Domain |
Forecast Length |
Documentation |
Bye |
#/day |
1957 |
H |
Barotropic |
381 km |
1 |
NH Octagonal 1977 pts |
72-h |
JNWPUB #22 |
6/1993 |
2 |
1958 |
? |
Baroclinic |
? |
2 |
|
36-h |
JNWPUB #26 |
1/1962 |
1 |
1962 |
H |
Cressman filtered-equation |
381 km |
3 |
NH |
36-h |
JNWPUB #34; NWS TBP #105 |
6/1966 (anl until Hough (1974) |
2 |
1962 |
H |
Reed Surface |
381 km |
2 |
NH |
36-h |
|
6/1966 |
|
1966 |
H |
Primative Equation (PE) |
381 km |
6 |
NH (53x57 points) |
36-h |
Shuman and Hovermale, JAM 1968 |
8/1980 (1/1978) |
2 |
1970 |
H |
PE (Barotropic Extension) |
381 km |
1 |
NH |
84-144 h |
|
8/1980 (1/1978) |
1 |
1974 |
G |
PE |
2.5 deg |
8 |
Global |
12-h (FNL) |
NWS TPB #115 |
1976 |
|
1976 |
G |
PE |
2.5 deg |
9 |
Global |
12-h (FNL) |
NWS TPB #258 |
8/1980 |
|
1977 |
G |
PE |
3.75 deg |
3 |
Global to 48-h; NH to 252-h |
252-h |
NWS TPB #215, #257 |
4/1981 |
1 |
1978 |
H |
PE |
190.5 km |
7 |
NH (129x129 points) |
84-h |
NMC Office Note #177 |
8/1980 |
2 |
1978 |
H |
Barotropic extension |
? |
1 |
NH |
84-240 h |
|
1/1980 |
1 |
1980 |
H |
PE extension (4th order finite differencing) |
381 km |
7 |
NH |
60-144 h |
NWS TPB #272, #273, NMC Office Note #316 |
8/1980 |
1 |
1980 |
H |
Barotropic extension |
? |
1 |
NH |
144-252 h |
NMC Office Note #316 |
8/1980 |
1 |
1980 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
R30 |
12 |
Global |
48-h |
NMC TPB #282 |
10/2002 (1983) |
2 |
1980 |
H |
Spectral Extension |
R24 |
12 |
NH |
48-144 h |
NMC Office Note #316 |
4/1981 |
1 |
1983 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
R40 |
12 |
Global |
240-h (00z cycle) |
|
10/2002 (1983) |
2 |
1985 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
R40 |
18, 12 po |
Global |
240-h (00z); 72-h (12z) |
NWS TPB #349 |
10/2002 (1987) |
2 |
1987 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
T80 |
18 |
Global |
240-h (00z); 72-h (12z) |
|
10/2002 (1991) |
2 |
1991 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
T126 |
18 |
Global |
240-h, 00z; 72-h (12z) |
|
10/2002 (1993) |
2 |
1992 |
G+E |
Global Ensemble Forecast System (GEFS) |
T62 |
12 |
Global |
240-h, 3 members |
NWS TPB #471 |
Still (1994) |
1 |
1993 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
T126 |
28 |
Global |
240-h (00z); 72-h (12z) |
|
10/2002 (2000) |
2 |
1994 |
G+E |
Global Ensemble Forecast System (GEFS) |
T62 |
18 |
Global |
384-h; 17 members |
|
Still (2000) |
|
2000 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
T170 (day 1-7) /T62 (day 8-16) |
42 (day 1-7)/28 (day 8-16) |
Global |
384-h (00z); 84-h (06,12,18z) |
|
10/2002 (3/2002) |
4 |
2000 |
G+E |
Global Ensemble Forecast System (GEFS) |
T126 (0-84h); T62 (84-384-h) |
28 (0-84 h); 18 (84-384 h) |
Global |
384-h |
|
Still (2004) |
|
2001 |
G |
Seasonal Forecast System |
T62 |
28 |
Global |
7 months |
NWS TPB #480 |
8/2004 |
1 |
2002 |
G |
Global Spectral Model (GSM) (MRF/AVN) |
T170 (day 1-7) /T62 (day 8-16) |
42/28 |
Global |
384-h (all 4 cycles) |
|
10/2002 (10/2002) |
4 |
2002 |
G |
Global Forecast System (renamed from MRF/AVN) |
T254 (0-84h); T170 (84-180h); T126 (180-384h) |
64 (0-84h); 42 (84-180h); 28 (180-384 h) |
Global |
384-h |
|
Still (2005) |
4 |
2004 |
G |
Climate Forecast System (CFS, replaces SFM) |
T62 |
64 |
Global |
9-10 months |
Saha et al, 2006 J. Climate |
Still (2011) |
2 |
2005 |
G |
GFS |
T382 (0-180h); T190 (180-384h) |
64 |
Global |
384-h |
|
Still (2010) |
4 |
2005 |
G+E |
GEFS |
T126 (0-180 h); T62 (180-384 h) |
28 |
Global |
384-h; 11 members |
|
Still (2006) |
4 |
2006 |
G+E |
GEFS |
T126, 14+1 mbrs |
28 |
Global |
384h |
EMC Doc |
Still (2007) |
2 |
2007 |
G+E |
GEFS |
T126, 20+1 mbrs |
28 |
Global |
384h |
NWS TIN |
Still (2010) |
2 |
2010 |
G |
GFS |
T574 (0-192h); T190 (192-384h) |
64 |
Global |
384h |
NWS TIN |
Still (2015) |
4 |
2010 |
G+E |
GEFS |
T190 (0-384h) |
28 |
Global |
384h |
NWS TIN |
Still (2012) |
4 |
2010 |
G+E |
NAEFS (GEFS+CEFS) |
1 deg lat/lon; 5 km products for CONUS; 6 km products for AK |
|
Global |
384h |
NWS TIN |
Still (2016) |
4 |
2011 |
G |
CFS; coupiled to GFDL MOM4 |
T126 (100 km) |
64 |
Global |
At 00/06/12/18z: 1 9-month control run; At 00z, 3 1-month perturbed runs; At 06/12/18z; 3 perturbed runs to 45 days |
AMS Paper |
Still (2014) |
4 cycles/day, 16 total runs/day |
2012 |
G |
GDAS |
T254 Hybrid Ensemble DA |
64 |
Global |
6h (GDAS fcst) |
NWS TIN |
Still (2015) |
4 |
2012 |
G+E |
GEFS |
T254 (55km) for 0-192h ,T190 for 192-384h |
42 |
Global |
384-h |
NWS TIN |
Still (2015) |
4 |
2012 |
G |
NGAC (Global Aerosol Model) |
T126 (1 deg lat/lon) |
64 |
Global |
120h |
NWS TIN |
9/2020 |
1 (00z) |
2015 |
G |
GFS |
T1534 Semi-Lagrangian (0-240h); T574 (240-384h) |
64 |
Global |
384h |
NWS TIN |
Still (2017) |
4 |
2015 |
G+E |
GEFS |
T574 (33km) to 192h, T382 (55km) from 192-384h |
64 |
Global, 21 mbrs |
384h |
NWS TIN |
Still (2020) |
4 |
2016 |
G+E |
NAEFS (GEFS+CEFS) |
1 deg lat/lon (global); 2.5 km products for CONUS; 3 km products for Alaska |
|
Global |
384h |
NWS TIN |
Still (2018) |
4 |
2016 |
G |
GDAS |
T1534 4D-Hybrid Ensemble DA |
64 |
Global |
6h (GDAS fcst) |
NWS TIN |
Still (2019) |
4 |
2017 |
G |
GFS/GDAS (NEMS-IO replaces Spectral IO) |
T1534 Semi-Lagrangian (0-240h); T574 (240-384h) |
64 |
Global |
384h |
NWS SCN |
Still (2019) |
4 |
2017 |
G |
NGAC (Global Aerosol Model) |
T126 |
64 |
Global |
120h |
NWS SCN |
9/2020 |
2 (00z, 12z) |
2018 |
G+E |
NAEFS (GEFS+CEFS) |
0.5 deg global products; 2.5 km CONUS, 3 km Alaska |
|
Global |
384h |
NWS SCN |
Still |
4 |
2019 |
G |
GFS (FV3 replaces GSM) |
13 km |
64, model top to 0.2 hPa |
Global |
384h |
NWS SCN |
Still (2021) |
4 |
2020 |
G+E |
GEFS (FV3 replaces GSM) |
25 km; 31 mbrs |
64 |
Global |
384h (00z cycle runs to 35 days) |
NWS SCN |
Still |
4 |
2020 |
G |
GEFS-Aerosol (replaces NGAC) |
25 km |
64 |
Global |
120h |
NWS SCN |
Still |
4 |
2021 |
G |
GFS |
13km |
127, model top to 80 km |
Global |
384h |
NWS SCN |
Still |
4 |
2021 |
G |
WAM-IPE (runs GSM) |
T62 |
150 (400-600 km model top) |
Global |
48h |
NWS SCN |
Still |
4 |