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HadISDH data download - version 4.0.0.2017f


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The current version of HadISDH is 4.0.0.2017f. For previous versions please contact the dataset maintainers.


NetCDF gridded files contain fields on 5° by 5° resolution from -177.5° W/87.5° N to 177.5° E/-87.5° S.


NetCDF station files contain monthly time series from January 1973 to December 2017.


Missing data are represented by -1e30.


Variables are described below.


The ASCII good station list file contains a WMO identifier (digits 0-5 (a6)), a WBAN identifier (digits 6-10 (a5)), a latitude (digits 11-19 (f9.4)), a longitude (digits 20-29 (f10.4)), an elevation in metres (digits 29-35 (f7.1)), space, a country ID (digits 37-39 (a2)), space, and a name (digits 41-72 (a32)).


The ASCII list of stations with subzero and supersaturated issues contain a WMO identifier (digits 0-5 (a6)), a WBAN identifier (digits 6-10 (a5)), the total number of affected months (digits 28-30 (i3)) and the total number of non-missing months (digits 32-34 (i3)).


The ASCII version of the gridded data lists each month in turn with 72 columns of longitude (-177.5 to 177.5 grid cell centres) and 36 rows of latitude (-87.5 to 87.5 grid cell centres). The longitudes and latitudes are listed at file end.


Product Description Data file Number of Stations Included           Period of record           Size (MB)
HadISDH.land*.4.0.0.2017f grids NetCDF Land surface grids and uncertainty HadISDH.landq.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_MAR2018_cf.nc, HadISDH.landRH.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_MAR2018_cf.nc, HadISDH.lande.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_MAR2018_cf.nc, HadISDH.landTd.4.0.0.2017f_FLATgridPHADPD5by5_anoms8110_MAR2018_cf.nc, HadISDH.landTw.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_MAR2018_cf.nc, HadISDH.landT.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_MAR2018_cf.nc, HadISDH.landDPD.4.0.0.2017f_FLATgridPHA5by5_anoms8110_MAR2018_cf.nc, 4393,
4438,
4393,
3724,
3592,
4221,
3865
Jan 1973 to Dec 2017 54M,
54M,
54M,
54M,
54M,
54M,
54M
HadISDH.land*.4.0.0.2017f grids ASCII Land surface anomalies relative to 1981-2010 HadISDH.landq.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.landRH.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.lande.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.landTd.4.0.0.2017f_FLATgridPHADPD5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.landTw.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.landT.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_anomalies_MAR2018.dat, HadISDH.landDPD.4.0.0.2017f_FLATgridPHA5by5_anoms8110_anomalies_MAR2018.dat, 4393,
4438,
4393,
3724,
3592,
4221,
3865
Jan 1973 to Dec 2017 13M,
13M,
13M,
13M,
13M,
13M,
13M
HadISDH.land*.4.0.0.2017f grids ASCII Land surface actual values HadISDH.landq.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_actuals_MAR2018.dat, HadISDH.landRH.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_actuals_MAR2018.dat, HadISDH.lande.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_actuals_MAR2018.dat, HadISDH.landTd.4.0.0.2017f_FLATgridPHADPD5by5_anoms8110_actuals_MAR2018.dat, HadISDH.landTw.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_actuals_MAR2018.dat, HadISDH.landT.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_actuals_MAR2018.dat, HadISDH.landDPD.4.0.0.2017f_FLATgridPHA5by5_anoms8110_actuals_MAR2018.dat, 4393,
4438,
4393,
3724,
3592,
4221,
3865
Jan 1973 to Dec 2017 13M,
13M,
13M,
13M,
13M,
13M,
13M
HadISDH.land*.4.0.0.2017f grids ASCII Land surface uncertainty (2 sigma) including station (measurement, inhomogeneity and climatology) and grid-box sampling HadISDH.landq.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.landRH.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.lande.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.landTd.4.0.0.2017f_FLATgridPHADPD5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.landTw.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.landT.4.0.0.2017f_FLATgridIDPHA5by5_anoms8110_uncertainty_MAR2018.dat, HadISDH.landDPD.4.0.0.2017f_FLATgridPHA5by5_anoms8110_uncertainty_MAR2018.dat, 4393,
4438,
4393,
3724,
3592,
4221,
3865
Jan 1973 to Dec 2017 13M,
13M,
13M,
13M,
13M,
13M,
13M
HadISDH.land*.4.0.0.2017f stations NetCDF Land surface stations and uncertainty tarball (tar -xzf to unpack) HadISDH.landq.4.0.0.2017f.stations,
HadISDH.landRH.4.0.0.2017f.stations,
HadISDH.lande.4.0.0.2017f.stations,
HadISDH.landTd.4.0.0.2017f.stations,
HadISDH.landTw.4.0.0.2017f.stations,
HadISDH.landT.4.0.0.2017f.stations,
HadISDH.landDPD.4.0.0.2017f.stations
4485,
4486,
4485,
3928,
4488,
4364,
4077
Jan 1973 to Dec 2017 29M,
17M,
30M,
24M,
16M,
16M,
24M
HadISDH.land*.4.0.0.2017f good station list ASCII Stations by WMO identifier, latitude, longitude and elevation PosthomogIDPHAq_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHArh_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAe_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogPHADPDtd_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAtw_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAt_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogPHAdpd_anoms8110_goodsHadISDH.4.0.0.2017f_MAR2018.txt
4485,
4486,
4485,
3928,
4488,
4364,
4077
Jan 1973 to Dec 2017 347K,
347K,
347K,
247K,
304K,
337K,
315K
HadISDH.land*.4.0.0.2017f sub-zero values station list ASCII Stations by WMO identifier, latitude, longitude and elevation PosthomogIDPHAq_anoms8110_subzerosHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAe_anoms8110_subzerosHadISDH.4.0.0.2017f_MAR2018.txt
44,
44
Jan 1973 to Dec 2017 1.9K,
1.9K
HadISDH.land*.4.0.0.2017f supersaturated values station list ASCII Stations by WMO identifier, latitude, longitude and elevation PosthomogIDPHAq_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHArh_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAe_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogPHADPDtd_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogIDPHAtw_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt,
PosthomogPHAdpd_anoms8110_satsHadISDH.4.0.0.2017f_MAR2018.txt
48,
48,
48,
204,
896,
212
Jan 1973 to Dec 2017 2.1K,
2.1K,
2.1K,
8.6K,
38K,
9.0K


NetCDF gridded file field Description Dimensions        Max and Min values               
q_abs,
rh_abs,
e_abs,
td_abs,
tw_abs,
t_abs,
dpd_abs
Monthly mean values 72 by 36 by 540 0.00 to 25.7 g kg-1,
4.73 to 99.32 %rh,
0.00 to 40.68 hPa,
-53.31 to 29.78 °C,
-45.43 to 29.11 °C,
-53.00 to 40.38 °C,
0.01 to 43.84 °C
q_anoms,
rh_anoms,
e_anoms,
td_anoms,
tw_anoms,
t_anoms,
dpd_anoms
Monthly mean climate anomaly from the 1981-2010 climatology period (only climatological mean subtracted, not standardised) 72 by 36 by 540 -6.15 to 6.43 g kg-1,
-52.76 to 42.00 %rh,
-9.79 to 9.92 hPa,
-20.44 to 17.03 °C,
-20.60 to 18.56 °C,
-21.79 to 20.05 °C,
-11.80 to 14.75 °C
q_std,
rh_std,
e_std,
td_std,
tw_std,
t_std,
dpd_std
Standard deviation of all station monthly mean anomalies within the gridbox for each month 72 by 36 by 540 0.00 to 11.70 (100) g kg-1,
0.00 to 44.93 (100) %rh,
0.00 to 19.39 (100) hPa,
0.00 to 24.35 (100) °C,
0.00 to 21.57 (100) °C,
0.00 to 22.90 (100) °C,
0.00 to 22.35 (100) °C
q_combinederr,
rh_combinederr,
e_combinederr,
td_combinederr,
tw_combinederr,
t_combinederr,
dpd_combinederr
Station uncertainty and sampling uncertainty combined in quadrature to give a 2σ uncertainty 72 by 36 by 540 0.04 to 3.98 g kg-1,
0.32 to 48.21 %rh,
0.05 to 6.24 hPa,
0.09 to 6.38 °C,
0.07 to 4.78 °C,
0.07 to 4.77 °C,
0.08 to 6.30 °C
q_samplingerr,
rh_samplingerr,
e_samplingerr,
td_samplingerr,
tw_samplingerr,
t_samplingerr,
dpd_samplingerr
2σ Spatio-temporal sampling uncertainty within the gridbox 72 by 36 by 540 0.00 to 0.74 g kg-1,
0.03 to 39.71 %rh,
0.00 to 1.78 hPa,
0.01 to 3.58 °C,
0.00 to 3.17 °C,
0.01 to 3.43 °C,
0.00 to 4.26 °C
q_rbar,
rh_rbar,
e_rbar,
td_rbar,
tw_rbar,
t_rbar,
dpd_rbar
Average inter-site correlation 72 by 36 0.10 to 0.90 g kg-1,
0.10 to 0.87 %rh,
0.10 to 0.90 hPa,
0.10 to 0.92 °C,
0.10 to 0.90 °C,
0.10 to 0.92 °C,
0.10 to 0.87 °C
q_sbarSQ,
rh_sbarSQ,
e_sbarSQ,
td_sbarSQ,
tw_sbarSQ,
t_sbarSQ,
dpd_sbarSQ
Estimate of the mean variance of individual stations in the gridbox 72 by 36 0.04 to 10.00 g kg-1,
1.66 to 103.64 %rh,
0.11 to 10.00 hPa,
0.10 to 15.35 °C,
0.08 to 12.20 °C,
0.08 to 14.69 °C,
0.09 to 13.84 °C
q_stationerr,
rh_stationerr,
e_stationerr,
td_stationerr,
tw_stationerr,
t_stationerr,
dpd_stationerr
Climatological, measurement and adjustment uncertainty combined in quadrature to give a 2σ station uncertainty 72 by 36 by 540 0.03 to 3.97 g kg-1,
0.26 to 27.33 %rh,
0.04 to 6.23 hPa,
0.05 to 6.03 °C,
0.04 to 3.85 °C,
0.04 to 4.23 °C,
0.05 to 5.88 °C
q_adjerr,
rh_adjerr,
e_adjerr,
td_adjerr,
tw_adjerr,
t_adjerr,
dpd_adjerr
2σ adjustment uncertainty for inhomogeneity in the data 72 by 36 by 540 0.03 to 3.96 g kg-1,
0.25 to 26.92 %rh,
0.04 to 6.22 hPa,
0.04 to 5.86 °C,
0.03 to 3.06 °C,
0.04 to 3.66 °C,
0.04 to 5.74 °C
q_obserr,
rh_obserr,
e_obserr,
td_obserr,
tw_obserr,
t_obserr,
dpd_obserr
2σ measurement uncertainty 72 by 36 by 540 0.00 to 0.28 g kg-1,
0.02 to 3.87 %rh,
0.00 to 0.45 hPa,
0.00 to 2.02 °C,
0.00 to 0.04 °C,
0.00 to 0.05 °C,
0.01 to 2.07 °C
q_climerr,
rh_climerr,
e_climerr,
td_climerr,
tw_climerr,
t_climerr,
dpd_climerr
2σ climatological uncertainty 72 by 36 by 540 0.00 to 1.12 g kg-1,
0.05 to 5.47 %rh,
0.01 to 1.76 hPa,
0.01 to 2.69 °C,
0.01 to 3.16 °C,
0.02 to 2.66 °C,
0.01 to 2.66 °C
q_clims,
rh_clims,
e_clims,
td_clims,
tw_clims,
t_clims,
dpd_clims
Monthly climatologies over the 1981-2010 period 72 by 36 by 12 0.05 to 21.65 g kg-1,
14.64 to 96.03 %rh,
0.09 to 33.78 hPa,
-45.17 to 25.93 °C,
-35.75 to 27.08 °C,
-45.69 to 38.32 °C,
0.60 to 36.40 °C
mean_n_stations Total number of stations within the gridbox over entire record 72 by 36 0 to 78,
0 to 78,
0 to 78,
0 to 63,
0 to 59,
0 to 78,
0 to 64
actual_n_stations Actual number of stations within the gridbox for each time step 72 by 36 by 540 0 to 78,
0 to 78,
0 to 78,
0 to 59,
0 to 59,
0 to 78,
0 to 60
latitude Latitude in 5° 72 by 36 -87.5° S to 87.5° N
longitude Longitude in 5° 72 by 36 -177.5° W to 177.5° E
time Gregorian: Days since 1st January 1973 00:00:00 528 15 = January 1973,
16410 = December 2017
months 1-12 12 1 to 12


NetCDF station file field Description Dimensions
*_abs Monthly mean value 540
*_anoms Monthly mean anomaly from the 1981-2010 climatology period (climate anomaly, not standardised) 540
*_stds Standard deviation of all station monthly mean anomalies within the gridbox for each month 540
*_uncertainty Climatological, measurement and adjustment uncertainty combined in quadrature to give a 2σ station uncertainty 540
*_adjerr 2σ adjustment uncertainty 540
*_obserr 2σ measurement uncertainty 540
*_climerr 2σ climatological uncertainty 540
*_clims Monthly climatologies over the 1981-2010 period 12
times Months since January 1973 540
months 1-12 12



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