RDA services unavailable July 25 - 29, 2021

Due to scheduled maintenance on the HPC systems at NCAR, all RDA data access services, including downloads, data subsetting, and THREDDS data server access, will be unavailable July 25–29, 2021.  Please follow our Twitter profile (@NCAR_RDA) for updates.

403 Forbidden for Slow Connections

 If you find yourself receiving 403 forbidden HTTP responses when downloading data from the RDA, it may be the result of a slow connection. 

The RDA currently limits connections that are below 200 KB/s averaged over a two minutes.  If a user stays below this threshold, they will be temporarily blocked from accessing our servers for 30 minutes.

Once blocked, downloaded files may appear to be smaller than expected and contain HTML. This occurs, because the server is sending the RDA's 401 forbidden page instead of the file.

At this point, there are two options to overcome this problem. The first would be to improve your network speed. Often, using a VPN or proxy server can overcome this issue

Alternatively, you can consider using our Globus download option. On each data access page, you can find an option to download the files using Globus as seen in the screenshot below. Globus is a service that transfers files using gridFTP and has built in error tolerance and unsupervised downloads. 

Concerning ERA5 Single Level Forecast Data, December 1978

The ERA5 single level forecast fields, 1978-12 as obtained from the ECMWF Climate Data Store (CDS) are incomplete -— they do not form a continuous time series with 1979 onward because 6 forecast hours have been omitted. This is particularly true for fluxes defined by mean rates which includes for example precipitation products. The four affected groups in the RDA dataset ds633.4, ERA5 back extension 1950-1978 (Preliminary version) are:

• ERA5 atmospheric surface forecast (accumulated), 1978-12
• ERA5 atmospheric surface forecast (instantaneous), 1978-12
• ERA5 atmospheric surface forecast (mean rates or fluxes), 1978-12
• ERA5 atmospheric surface forecast (minimum-maximum), 1978-12

NCAR's CISL/DECS has brought this to the attention of ECMWF, and are waiting for ECMWF to fill in the gap on the CDS. Apologies for the inconvenience, and thank you for your patience.

A more detailed discussion follows:

The ERA5 forecast data 'time' conventions are somewhat awkward (but entirely the prerogative of ECMWF and especially the Copernicus Climate Data Store -- CDS). For any given day, CDS provides 2 forecast initial times, 06 and 18Z. For each forecast there are 12 forecast hours, 1,2,3,4,5,6,7,8,9,10,11, and 12 hours. In the netCDF files as produced by CISL/DECS for the RDA, this is represented with two coordinate dimensions,

forecast_initial_time

forecast_hour

The valid time of the forecast data is then

forecast_initial_time + forecast_hour

A discrete 24 hour time series of, for example, "mean rates or fluxes" forecast data (including "Mean total precipitation rate", kg m**-2 s**-1) in this case is given by

06Z forecast initial time current day + 1hr	(a mean flux/rate between 6 and 7 hr of current day)
06Z forecast initial time current day + 2hr	(a mean flux/rate between 7 and 8 hr of current day)
06Z forecast initial time current day + 3hr	(a mean flux/rate between 8 and 9 hr of current day)
06Z forecast initial time current day + 4hr	(a mean flux/rate between 9 and 10 hr of current day)
06Z forecast initial time current day + 5hr	(a mean flux/rate between 10 and 11 hr of current day)
06Z forecast initial time current day + 6hr	(a mean flux/rate between 11 and 12 hr of current day)
06Z forecast initial time current day + 7hr	(a mean flux/rate between 12 and 13 hr of current day)
06Z forecast initial time current day + 8hr	(a mean flux/rate between 13 and 14 hr of current day)
06Z forecast initial time current day + 9hr	(a mean flux/rate between 14 and 15 hr of current day)
06Z forecast initial time current day + 10hr	(a mean flux/rate between 15 and 16 hr of current day)
06Z forecast initial time current day + 11hr	(a mean flux/rate between 16 and 17 hr of current day)
06Z forecast initial time current day + 12hr	(a mean flux/rate between 17 and 18 hr of current day)
18Z forecast initial time current day + 1hr	(a mean flux/rate between 18 and 19 hr of current day)
18Z forecast initial time current day + 2hr	(a mean flux/rate between 19 and 20 hr of current day)
18Z forecast initial time current day + 3hr	(a mean flux/rate between 20 and 21 hr of current day)
18Z forecast initial time current day + 4hr	(a mean flux/rate between 21 and 22 hr of current day)
18Z forecast initial time current day + 5hr	(a mean flux/rate between 22 and 23 hr of current day)
18Z forecast initial time current day + 6hr	(a mean flux/rate between 23 and 24 hr of current day)
18Z forecast initial time current day + 7hr	(a mean flux/rate between 0 and 1 hr of *next day*)
18Z forecast initial time current day + 8hr	(a mean flux/rate between 1 and 2 hr of *next day*)
18Z forecast initial time current day + 9hr	(a mean flux/rate between 2 and 3 hr of *next day*)
18Z forecast initial time current day + 10hr	(a mean flux/rate between 3 and 4 hr of *next day*)
18Z forecast initial time current day + 11hr	(a mean flux/rate between 4 and 5 hr of *next day*)
18Z forecast initial time current day + 12hr	(a mean flux/rate between 5 and 6 hr of *next day*)

The crux of the matter is, for 31 December 1978, 1978-12-31, the CDS has omitted the last 6 entries,

18Z forecast initial time 1978-12-31 + 7hr	(a mean flux/rate between 0 and 1 hr of 1979-01-01)
18Z forecast initial time 1978-12-31 + 8hr	(a mean flux/rate between 1 and 2 hr of 1979-01-01)
18Z forecast initial time 1978-12-31 + 9hr	(a mean flux/rate between 2 and 3 hr of 1979-01-01)
18Z forecast initial time 1978-12-31 + 10hr	(a mean flux/rate between 3 and 4 hr of 1979-01-01)
18Z forecast initial time 1978-12-31 + 11hr	(a mean flux/rate between 4 and 5 hr of 1979-01-01)
18Z forecast initial time 1978-12-31 + 12hr	(a mean flux/rate between 5 and 6 hr of 1979-01-01)

which prevents CISL/DECS from forming an uninterrupted time series with ERA5 data for 1 January 1979, 1979-01-01, because the first entry for 1979-01-01, *as provided by CDS*, is

06Z forecast initial 1979-01-01 + 1hr

(a mean flux/rate between 6 and 7 hr of 1979-01-01)

Data Corruption of 206 NCAR RDA ERA5 Grids

It has been reported to ECMWF that some of the ERA5 data on the Copernicus CDS (Climate Data Store) disks was corrupted. The following pertinent CDS catalogue entries were affected, and replaced by ECMWF. CISL/DECS are examining these grids in the NCAR RDA ERA5 archive, namely,

ERA5 Reanalysis (0.25 Degree Latitude-Longitude Grid)

in an effort to uniquely identify each grid and its host GRIB file as a target for replacement. (The corresponding netCDF4 file will be regenerated as well.) For further information, please refer to the ECMWF web page

ERA5 CDS: Data Corruption

(For the same table with larger font, one may refer to

Data Corruption of 206 NCAR RDA ERA5 Grids)

ECMWF Product Type	RDA Dataset	Count	Year	Month	Day	Time	Level	Variable	Number of Grid Points
ERA5 reanalysis pressure levels	ds633.0	1	1980	02	16	00:00	875	u component of wind	1793
ERA5 reanalysis pressure levels	ds633.0	2	1980	02	17	12:00	30	ozone mass mixing ratio	1897
ERA5 reanalysis pressure levels	ds633.0	3	1980	05	19	12:00	5	ozone mass mixing ratio	1937
ERA5 reanalysis pressure levels	ds633.0	4	1980	10	14	02:00	450	temperature	1423
ERA5 reanalysis pressure levels	ds633.0	5	1980	11	28	14:00	200	vertical velocity	427
ERA5 reanalysis pressure levels	ds633.0	6	1981	02	22	02:00	100	vorticity	2031
ERA5 reanalysis pressure levels	ds633.0	7	1981	05	02	12:00	70	specific humidity	603
ERA5 reanalysis pressure levels	ds633.0	8	1981	05	02	12:00	600	u component of wind	603
ERA5 reanalysis pressure levels	ds633.0	9	1983	04	14	12:00	450	potential vorticity	157
ERA5 reanalysis pressure levels	ds633.0	10	1983	04	27	14:00	825	temperature	991
ERA5 reanalysis pressure levels	ds633.0	11	1984	01	09	10:00	800	divergence	7
ERA5 reanalysis pressure levels	ds633.0	12	1984	05	02	13:00	1	specific humidity	1533
ERA5 reanalysis pressure levels	ds633.0	13	1984	07	25	03:00	975	temperature	999
ERA5 reanalysis pressure levels	ds633.0	14	1984	12	23	19:00	2	vertical velocity	537
ERA5 reanalysis pressure levels	ds633.0	15	1985	02	15	19:00	150	u component of wind	1861
ERA5 reanalysis pressure levels	ds633.0	16	1986	05	07	23:00	1	specific humidity	1613
ERA5 reanalysis pressure levels	ds633.0	17	1986	05	12	22:00	175	u component of wind	527
ERA5 reanalysis pressure levels	ds633.0	18	1986	05	19	21:00	825	temperature	819
ERA5 reanalysis pressure levels	ds633.0	19	1986	11	15	15:00	50	vertical velocity	347
ERA5 reanalysis pressure levels	ds633.0	20	1986	11	21	11:00	100	v component of wind	1225
ERA5 reanalysis pressure levels	ds633.0	21	1986	11	21	15:00	175	temperature	1003
ERA5 reanalysis pressure levels	ds633.0	22	1987	04	27	23:00	200	ozone mass mixing ratio	767
ERA5 reanalysis pressure levels	ds633.0	23	1987	08	05	07:00	175	relative humidity	791
ERA5 reanalysis pressure levels	ds633.0	24	1988	04	20	09:00	20	temperature	1521
ERA5 reanalysis pressure levels	ds633.0	25	1988	04	21	21:00	925	geopotential	511
ERA5 reanalysis pressure levels	ds633.0	26	1988	04	22	01:00	70	ozone mass mixing ratio	439
ERA5 reanalysis pressure levels	ds633.0	27	1988	04	25	02:00	70	u component of wind	1597
ERA5 reanalysis pressure levels	ds633.0	28	1988	08	01	16:00	200	ozone mass mixing ratio	991
ERA5 reanalysis pressure levels	ds633.0	29	1988	08	21	14:00	20	vertical velocity	1979
ERA5 reanalysis pressure levels	ds633.0	30	1990	01	06	04:00	925	divergence	1363
ERA5 reanalysis pressure levels	ds633.0	31	1990	01	08	23:00	650	geopotential	1211
ERA5 reanalysis pressure levels	ds633.0	32	1990	03	10	07:00	225	v component of wind	557
ERA5 reanalysis pressure levels	ds633.0	33	1990	03	11	09:00	150	geopotential	1795
ERA5 reanalysis pressure levels	ds633.0	34	1990	03	24	03:00	800	v component of wind	1421
ERA5 reanalysis pressure levels	ds633.0	35	1990	06	08	00:00	400	u component of wind	825
ERA5 reanalysis pressure levels	ds633.0	36	1990	06	14	16:00	20	vorticity	1643
ERA5 reanalysis pressure levels	ds633.0	37	1990	06	18	12:00	100	relative humidity	471
ERA5 reanalysis pressure levels	ds633.0	38	1990	06	24	09:00	2	v component of wind	1371
ERA5 reanalysis pressure levels	ds633.0	39	1990	06	28	16:00	550	specific humidity	761
ERA5 reanalysis pressure levels	ds633.0	40	1990	09	03	18:00	5	v component of wind	681
ERA5 reanalysis pressure levels	ds633.0	41	1990	09	14	21:00	800	ozone mass mixing ratio	313
ERA5 reanalysis pressure levels	ds633.0	42	1990	09	20	01:00	225	relative humidity	801
ERA5 reanalysis pressure levels	ds633.0	43	1990	09	28	04:00	700	vorticity	1989
ERA5 reanalysis pressure levels	ds633.0	44	1990	10	15	23:00	225	ozone mass mixing ratio	241
ERA5 reanalysis pressure levels	ds633.0	45	1990	10	15	23:00	975	v component of wind	253
ERA5 reanalysis pressure levels	ds633.0	46	1990	10	16	02:00	1	u component of wind	277
ERA5 reanalysis pressure levels	ds633.0	47	1991	06	09	07:00	800	geopotential	333
ERA5 reanalysis pressure levels	ds633.0	48	1991	07	30	21:00	20	ozone mass mixing ratio	1171
ERA5 reanalysis pressure levels	ds633.0	49	1991	09	16	19:00	925	ozone mass mixing ratio	895
ERA5 reanalysis pressure levels	ds633.0	50	1991	09	17	09:00	225	divergence	1807
ERA5 reanalysis pressure levels	ds633.0	51	1991	09	17	09:00	550	geopotential	1807
ERA5 reanalysis pressure levels	ds633.0	52	1991	09	17	12:00	300	ozone mass mixing ratio	1951
ERA5 reanalysis pressure levels	ds633.0	53	1991	12	03	16:00	3	ozone mass mixing ratio	1247
ERA5 reanalysis pressure levels	ds633.0	54	1991	12	05	21:00	300	specific humidity	1259
ERA5 reanalysis pressure levels	ds633.0	55	1991	12	05	22:00	350	temperature	789
ERA5 reanalysis pressure levels	ds633.0	56	1991	12	06	09:00	800	specific humidity	1457
ERA5 reanalysis pressure levels	ds633.0	57	1991	12	11	13:00	550	v component of wind	1727
ERA5 reanalysis pressure levels	ds633.0	58	1991	12	16	19:00	20	u component of wind	253
ERA5 reanalysis pressure levels	ds633.0	59	1992	08	03	12:00	1000	relative humidity	329
ERA5 reanalysis pressure levels	ds633.0	60	1993	11	26	10:00	825	ozone mass mixing ratio	1687
ERA5 reanalysis pressure levels	ds633.0	61	1993	11	26	11:00	300	relative humidity	1686
ERA5 reanalysis pressure levels	ds633.0	62	1994	01	20	16:00	3	u component of wind	1281
ERA5 reanalysis pressure levels	ds633.0	63	1994	01	20	20:00	125	ozone mass mixing ratio	1935
ERA5 reanalysis pressure levels	ds633.0	64	1994	05	20	22:00	400	vertical velocity	529
ERA5 reanalysis pressure levels	ds633.0	65	1994	09	15	03:00	875	vertical velocity	99
ERA5 reanalysis pressure levels	ds633.0	66	1994	09	21	11:00	250	relative humidity	847
ERA5 reanalysis pressure levels	ds633.0	67	1994	09	23	04:00	225	relative humidity	197
ERA5 reanalysis pressure levels	ds633.0	68	1995	04	18	21:00	900	vorticity	647
ERA5 reanalysis pressure levels	ds633.0	69	1995	04	20	06:00	20	divergence	1721
ERA5 reanalysis pressure levels	ds633.0	70	1995	07	29	07:00	775	u component of wind	1679
ERA5 reanalysis pressure levels	ds633.0	71	1996	09	01	21:00	500	v component of wind	53
ERA5 reanalysis pressure levels	ds633.0	72	1996	09	08	17:00	1000	potential vorticity	513
ERA5 reanalysis pressure levels	ds633.0	73	1996	09	23	18:00	70	vorticity	17
ERA5 reanalysis pressure levels	ds633.0	74	1996	09	27	03:00	600	relative humidity	677
ERA5 reanalysis pressure levels	ds633.0	75	1996	09	29	05:00	550	relative humidity	225
ERA5 reanalysis pressure levels	ds633.0	76	1997	02	19	17:00	1000	vorticity	997
ERA5 reanalysis pressure levels	ds633.0	77	1997	02	19	20:00	800	potential vorticity	751
ERA5 reanalysis pressure levels	ds633.0	78	1997	09	04	22:00	750	u component of wind	547
ERA5 reanalysis pressure levels	ds633.0	79	1997	09	23	01:00	825	geopotential	1885
ERA5 reanalysis pressure levels	ds633.0	80	1998	10	10	07:00	700	vertical velocity	1007
ERA5 reanalysis pressure levels	ds633.0	81	1999	02	04	22:00	300	divergence	439
ERA5 reanalysis pressure levels	ds633.0	82	1999	02	05	00:00	20	ozone mass mixing ratio	625
ERA5 reanalysis pressure levels	ds633.0	83	1999	02	15	02:00	20	specific humidity	105
ERA5 reanalysis pressure levels	ds633.0	84	1999	02	16	08:00	2	v component of wind	1275
ERA5 reanalysis pressure levels	ds633.0	85	1999	02	16	09:00	50	u component of wind	1179
ERA5 reanalysis pressure levels	ds633.0	86	1999	02	16	11:00	150	vorticity	1365
ERA5 reanalysis pressure levels	ds633.0	87	1999	02	20	19:00	150	vorticity	311
ERA5 reanalysis pressure levels	ds633.0	88	1999	02	23	22:00	875	ozone mass mixing ratio	2033
ERA5 reanalysis pressure levels	ds633.0	89	1999	06	20	05:00	225	specific humidity	1207
ERA5 reanalysis pressure levels	ds633.0	90	1999	06	22	16:00	550	specific humidity	1209
ERA5 reanalysis pressure levels	ds633.0	91	1999	06	22	21:00	70	temperature	821
ERA5 reanalysis pressure levels	ds633.0	92	1999	07	13	03:00	950	ozone mass mixing ratio	959
ERA5 reanalysis pressure levels	ds633.0	93	1999	07	17	23:00	825	divergence	641
ERA5 reanalysis pressure levels	ds633.0	94	2004	02	01	02:00	750	v component of wind	241
ERA5 reanalysis pressure levels	ds633.0	95	2004	02	01	16:00	10	u component of wind	845
ERA5 reanalysis pressure levels	ds633.0	96	2004	02	01	21:00	200	divergence	1179
ERA5 reanalysis pressure levels	ds633.0	97	2004	02	03	12:00	50	potential vorticity	821
ERA5 reanalysis pressure levels	ds633.0	98	2004	02	05	04:00	400	divergence	821
ERA5 reanalysis pressure levels	ds633.0	99	2004	02	26	05:00	2	vorticity	1453
ERA5 reanalysis pressure levels	ds633.0	100	2007	12	16	04:00	1000	relative humidity	1049
ERA5 reanalysis pressure levels	ds633.0	101	2007	12	18	21:00	50	vorticity	1817
ERA5 reanalysis single levels	ds633.0	102	1979	03	19	13:00	-	mean surface downward long wave radiation flux clear sky	193
ERA5 reanalysis single levels	ds633.0	103	1979	03	23	21:00	-	soil temperature level 1	1014
ERA5 reanalysis single levels	ds633.0	104	1979	05	19	11:00	-	uv visible albedo for diffuse radiation	1613
ERA5 reanalysis single levels	ds633.0	105	1980	03	03	23:00	-	2m dewpoint temperature	110
ERA5 reanalysis single levels	ds633.0	106	1980	04	12	15:00	-	mean vertically integrated moisture divergence	1714
ERA5 reanalysis single levels	ds633.0	107	1980	04	21	19:00	-	vertical integral of northward cloud liquid water flux	119
ERA5 reanalysis single levels	ds633.0	108	1980	10	08	09:00	-	uv visible albedo for direct radiation	102
ERA5 reanalysis single levels	ds633.0	109	1980	10	26	05:00	-	10m u component of wind	1471
ERA5 reanalysis single levels	ds633.0	110	1981	02	26	22:00	-	northward turbulent surface stress	1974
ERA5 reanalysis single levels	ds633.0	111	1981	08	14	12:00	-	uv visible albedo for direct radiation	1358
ERA5 reanalysis single levels	ds633.0	112	1981	08	15	18:00	-	vertical integral of potential internal and latent energy	1155
ERA5 reanalysis single levels	ds633.0	113	1981	09	26	01:00	-	northward gravity wave surface stress	1215
ERA5 reanalysis single levels	ds633.0	114	1981	10	11	06:00	-	volumetric soil water layer 1	1210
ERA5 reanalysis single levels	ds633.0	115	1981	10	11	11:00	-	forecast surface roughness	173
ERA5 reanalysis single levels	ds633.0	116	1981	10	14	05:00	-	vertical integral of northward geopotential flux	12
ERA5 reanalysis single levels	ds633.0	117	1982	10	18	08:00	-	uv visible albedo for direct radiation	1447
ERA5 reanalysis single levels	ds633.0	118	1982	10	22	15:00	-	vertical integral of eastward geopotential flux	1573
ERA5 reanalysis single levels	ds633.0	119	1983	06	07	08:00	-	snow evaporation	1935
ERA5 reanalysis single levels	ds633.0	120	1983	09	09	00:00	-	ice temperature layer 1	195
ERA5 reanalysis single levels	ds633.0	121	1983	09	10	09:00	-	10m u component of wind	156
ERA5 reanalysis single levels	ds633.0	122	1983	10	11	15:00	-	volumetric soil water layer 1	1237
ERA5 reanalysis single levels	ds633.0	123	1984	03	06	04:00	-	10m v component of neutral wind	1070
ERA5 reanalysis single levels	ds633.0	124	1985	03	03	09:00	-	near ir albedo for diffuse radiation	1808
ERA5 reanalysis single levels	ds633.0	125	1985	03	19	05:00	-	instantaneous moisture flux	1463
ERA5 reanalysis single levels	ds633.0	126	1985	08	23	00:00	-	vertical integral of northward kinetic energy flux	158
ERA5 reanalysis single levels	ds633.0	127	1986	07	22	17:00	-	evaporation	1957
ERA5 reanalysis single levels	ds633.0	128	1987	03	06	19:00	-	model bathymetry	181
ERA5 reanalysis single levels	ds633.0	129	1987	03	09	21:00	-	instantaneous 10m wind gust	1208
ERA5 reanalysis single levels	ds633.0	130	1987	03	12	16:00	-	vertical integral of kinetic energy	1987
ERA5 reanalysis single levels	ds633.0	131	1987	07	16	12:00	-	vertical integral of potential internal and latent energy	1034
ERA5 reanalysis single levels	ds633.0	132	1987	08	24	05:00	-	instantaneous surface sensible heat flux	1218
ERA5 reanalysis single levels	ds633.0	133	1988	09	18	22:00	-	10m u component of neutral wind	1702
ERA5 reanalysis single levels	ds633.0	134	1988	11	17	06:00	-	mean eastward gravity wave surface stress	15
ERA5 reanalysis single levels	ds633.0	135	1988	11	26	08:00	-	2m temperature	1112
ERA5 reanalysis single levels	ds633.0	136	1989	03	01	21:00	-	forecast surface roughness	1223
ERA5 reanalysis single levels	ds633.0	137	1989	03	13	09:00	-	near ir albedo for diffuse radiation	1919
ERA5 reanalysis single levels	ds633.0	138	1989	04	15	22:00	-	eastward gravity wave surface stress	1172
ERA5 reanalysis single levels	ds633.0	139	1989	08	30	10:00	-	instantaneous northward turbulent surface stress	1449
ERA5 reanalysis single levels	ds633.0	140	1989	08	30	10:00	-	mean potential evaporation rate	1998
ERA5 reanalysis single levels	ds633.0	141	1990	04	29	22:00	-	near ir albedo for direct radiation	1823
ERA5 reanalysis single levels	ds633.0	142	1990	05	09	23:00	-	ice temperature layer 3	1940
ERA5 reanalysis single levels	ds633.0	143	1990	07	19	17:00	-	2m temperature	1751
ERA5 reanalysis single levels	ds633.0	144	1990	08	02	23:00	-	vertical integral of eastward ozone flux	166
ERA5 reanalysis single levels	ds633.0	145	1990	10	29	20:00	-	mean northward turbulent surface stress	145
ERA5 reanalysis single levels	ds633.0	146	1990	12	08	06:00	-	surface sensible heat flux	1567
ERA5 reanalysis single levels	ds633.0	147	1991	05	06	10:00	-	ice temperature layer 4	1852
ERA5 reanalysis single levels	ds633.0	148	1991	09	26	04:00	-	volumetric soil water layer 1	151
ERA5 reanalysis single levels	ds633.0	149	1992	04	13	20:00	-	mean surface net long wave radiation flux clear sky	1272
ERA5 reanalysis single levels	ds633.0	150	1992	07	18	12:00	-	snow evaporation	107
ERA5 reanalysis single levels	ds633.0	151	1992	07	30	22:00	-	uv visible albedo for diffuse radiation	1395
ERA5 reanalysis single levels	ds633.0	152	1992	10	15	10:00	-	10m v component of wind	1016
ERA5 reanalysis single levels	ds633.0	153	1994	01	31	22:00	-	surface latent heat flux	129
ERA5 reanalysis single levels	ds633.0	154	1994	05	01	20:00	-	mean northward turbulent surface stress	19
ERA5 reanalysis single levels	ds633.0	155	1994	05	09	08:00	-	instantaneous surface sensible heat flux	1568
ERA5 reanalysis single levels	ds633.0	156	1994	12	04	09:00	-	vertical integral of total energy	131
ERA5 reanalysis single levels	ds633.0	157	1994	12	23	18:00	-	vertical integral of divergence of mass flux	1837
ERA5 reanalysis single levels	ds633.0	158	1995	04	25	11:00	-	near ir albedo for diffuse radiation	1791
ERA5 reanalysis single levels	ds633.0	159	1995	11	24	15:00	-	10m v component of neutral wind	1026
ERA5 reanalysis single levels	ds633.0	160	1995	12	02	17:00	-	10m wind gust since previous post processing	1717
ERA5 reanalysis single levels	ds633.0	161	1995	12	05	14:00	-	surface latent heat flux	122
ERA5 reanalysis single levels	ds633.0	162	1996	01	02	07:00	-	ice temperature layer 1	1305
ERA5 reanalysis single levels	ds633.0	163	1996	07	07	19:00	-	geopotential	137
ERA5 reanalysis single levels	ds633.0	164	1996	07	15	19:00	-	mean potential evaporation rate	179
ERA5 reanalysis single levels	ds633.0	165	1996	07	16	17:00	-	top net thermal radiation	1227
ERA5 reanalysis single levels	ds633.0	166	1996	08	14	11:00	-	vertical integral of northward total energy flux	1728
ERA5 reanalysis single levels	ds633.0	167	1996	08	17	16:00	-	2m dewpoint temperature	1711
ERA5 reanalysis single levels	ds633.0	168	1996	10	18	00:00	-	mean surface downward long wave radiation flux	1862
ERA5 reanalysis single levels	ds633.0	169	1996	10	18	23:00	-	surface thermal radiation downward clear sky	1080
ERA5 reanalysis single levels	ds633.0	170	1997	05	18	15:00	-	mean potential evaporation rate	194
ERA5 reanalysis single levels	ds633.0	171	1998	10	03	11:00	-	soil temperature level 3	167
ERA5 reanalysis single levels	ds633.0	172	1999	07	19	12:00	-	surface sensible heat flux	1303
ERA5 reanalysis single levels	ds633.0	173	2009	12	16	08:00	-	mean potential evaporation rate	162144
ERA5 reanalysis single levels	ds633.0	174	2010	11	01	02:00	-	mean potential evaporation rate	190620
ERA5 reanalysis single levels	ds633.0	175	2010	11	27	09:00	-	mean potential evaporation rate	142741
ERA5 reanalysis single levels	ds633.0	176	2010	11	27	09:00	-	mean surface downward long wave radiation flux	12952
ERA5 reanalysis single levels	ds633.0	177	2010	11	27	09:00	-	mean top net long wave radiation flux	17854
ERA5 reanalysis single levels	ds633.0	178	2011	08	01	22:00	-	vertical integral of eastward ozone flux	131
ERA5 reanalysis single levels	ds633.0	179	2011	08	07	01:00	-	instantaneous surface sensible heat flux	1615
ERA5 reanalysis single levels	ds633.0	180	2011	08	07	19:00	-	mean northward gravity wave surface stress	1582
ERA5 reanalysis single levels	ds633.0	181	2011	08	19	08:00	-	vertical integral of eastward total energy flux	1167
ERA5 reanalysis single levels	ds633.0	182	2013	03	08	21:00	-	top net thermal radiation	110
ERA5 reanalysis single levels	ds633.0	183	2013	03	14	05:00	-	mean sea level pressure	109
ERA5 reanalysis single levels	ds633.0	184	2013	06	07	05:00	-	vertical integral of eastward kinetic energy flux	173
ERA5 reanalysis single levels	ds633.0	185	2013	06	08	21:00	-	evaporation	1452
ERA5 reanalysis single levels	ds633.0	186	2013	06	13	00:00	-	eastward gravity wave surface stress	1704
ERA5 reanalysis single levels	ds633.0	187	2013	06	14	14:00	-	top net thermal radiation	176
ERA5 reanalysis single levels	ds633.0	188	2013	06	18	10:00	-	soil temperature level 1	108
ERA5 reanalysis single levels	ds633.0	189	2013	06	21	07:00	-	vertical integral of divergence of cloud frozen water flux	156
ERA5 reanalysis single levels	ds633.0	190	2013	06	22	02:00	-	10m wind gust since previous post processing	1777
ERA5 reanalysis single levels	ds633.0	191	2013	07	03	06:00	-	vertical integral of temperature	155
ERA5 reanalysis single levels	ds633.0	192	2014	03	27	03:00	-	vertical integral of northward ozone flux	169
ERA5 reanalysis single levels	ds633.0	193	2014	03	30	20:00	-	vertical integral of eastward kinetic energy flux	119
ERA5 reanalysis single levels	ds633.0	194	2014	04	04	09:00	-	vertical integral of potential internal and latent energy	100
ERA5 reanalysis single levels	ds633.0	195	2014	04	06	15:00	-	near ir albedo for diffuse radiation	160
ERA5 reanalysis single levels	ds633.0	196	2014	04	10	15:00	-	instantaneous northward turbulent surface stress	1918
ERA5 reanalysis single levels	ds633.0	197	2014	04	16	19:00	-	evaporation	1710
ERA5 reanalysis single levels	ds633.0	198	2014	04	18	04:00	-	10m v component of neutral wind	1530
ERA5 reanalysis single levels	ds633.0	199	2014	04	18	05:00	-	maximum 2m temperature since previous post processing	1530
ERA5 reanalysis single levels	ds633.0	200	2014	04	27	08:00	-	uv visible albedo for direct radiation	191
ERA5 reanalysis single levels	ds633.0	201	2014	05	07	02:00	-	2m temperature	151
ERA5 reanalysis single levels	ds633.0	202	2014	05	07	11:00	-	uv visible albedo for direct radiation	100
ERA5 reanalysis single levels	ds633.0	203	2014	05	18	15:00	-	soil temperature level 3	1281
ERA5 reanalysis single levels	ds633.0	204	2014	05	19	17:00	-	vertical integral of divergence of geopotential flux	1616
ERA5 reanalysis single levels	ds633.0	205	2014	06	05	06:00	-	angle of sub gridscale orography	120
ERA5 reanalysis single levels	ds633.0	206	2017	04	14	08:00	-	northward gravity wave surface stress	1348

Update: RDA data access remains offline through March 11

 Due to extended maintenance, RDA data access services including downloads, subsetting requests, and THREDDS data access, will remain offline and unavailable through Thursday March 11, 2021.  We appreciate your patience as we work to complete this maintenance.

RDA data services unavailable March 9–10, 2021

 Due to scheduled maintenance on the computing system at NCAR, all RDA data access services, including downloads, data subsetting, and THREDDS data server access, will be unavailable March 9–10, 2021.  Please follow our Twitter profile (@NCAR_RDA) for updates.