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Dataset

 
UK Climate Projections Logo

UKCP09: Observed UK climate data (1961-1990)

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2017-09-05
Download Stats: last 12 months

Abstract

The UK climate projections 2009 (UKCP09) observed climate provides data for a range of climate variables (for example, temperature, pressure, vapour pressure, rainfall, snowfall, sunshine) over the climate averaging period 1961-1990. The observed data is provided over the UK at grid box resolutions of 25km and 5km.

The observed data refers to data that has been directly measured and obtained in UK from a network of synoptic observations and weather stations. These data are commonly processed to convert irregularly spaced point observations to a regular grid. The observed climate data can be used both to explore past climate trends, to construct and validate climate models and to provide a baseline to construct climate differences.

Citable as:  Hadley Centre for Climate Prediction and Research (2017): UKCP09: Observed UK climate data (1961-1990). Centre for Environmental Data Analysis, date of citation. http://catalogue.ceda.ac.uk/uuid/87b3ab3b9bae47adab0c15d594d443b8
Abbreviation: Not defined
Keywords: UKCP09, UK, observed, climate

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: https://services.ceda.ac.uk/cedasite/resreg/application?attributeid=ukcp09-climate-projections. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Original data were produced by the Met Office as part of the UKCP09 service before preparation for archival with the Centre for Environmental Data Analysis (CEDA).

Data Quality:
For details on data quality checks, grid accuracy etc. please see the linked "UKCP09 Frequently Asked Questions".
File Format:
The data are NetCDF formatted and adhere to v1.0 of the CF data conventions.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description None
  • var_id: rainfall
  • long_name: Average daily precipitation (mm)
  • units: mm
  • names: rainfall, Average daily precipitation (mm)
  • long_name: Calculated Vapour Pressure
  • var_id: calcvap_dmean_tmean_abs
  • units: hPa
  • names: Calculated Vapour Pressure, calcvap_dmean_tmean_abs
  • long_name: Daily fraction of sunshine derived from cloud amount.
  • var_id: sunshinefromcloud_dmean_tmean_abs
  • units: 1
  • names: Daily fraction of sunshine derived from cloud amount., sunshinefromcloud_dmean_tmean_abs
  • units: hPa
  • long_name: Difference in calculated and observed Vapour Pressure
  • var_id: vapdiff
  • names: Difference in calculated and observed Vapour Pressure, vapdiff
  • long_name: Difference in hours of sunshine per day derived from cloud amount.
  • var_id: sunshinehoursdifference_dtotal_tmean_abs
  • units: 1
  • names: sunshinehoursdifference_dtotal_tmean_abs, Difference in hours of sunshine per day derived from cloud amount.
  • long_name: Difference in the daily fraction of sunshine derived from cloud amount.
  • var_id: sunshinedifference_dmean_tmean_abs
  • units: 1
  • names: sunshinedifference_dmean_tmean_abs, Difference in the daily fraction of sunshine derived from cloud amount.
  • long_name: Hours of sunshine per day derived from cloud amount.
  • units: hrs/day
  • var_id: sunshinehoursfromcloud_dtotal_tmean_abs
  • names: Hours of sunshine per day derived from cloud amount., sunshinehoursfromcloud_dtotal_tmean_abs
  • units: %
  • long_name: Mean monthly cloud cover (%)
  • var_id: cloud
  • names: Mean monthly cloud cover (%), cloud
  • long_name: Mean monthly daily maximum temperature (degC)
  • units: degC
  • var_id: max_temp
  • names: max_temp, Mean monthly daily maximum temperature (degC)
  • long_name: Mean monthly daily minimum temperature (degC)
  • units: degC
  • var_id: min_temp
  • names: min_temp, Mean monthly daily minimum temperature (degC)
  • long_name: Mean monthly sea-level pressure (hPa)
  • units: hPa
  • var_id: msl_pressure
  • names: msl_pressure, Mean monthly sea-level pressure (hPa)
  • var_id: vapour_pressure
  • long_name: Mean monthly vapour pressure (hPa)
  • units: hPa
  • names: vapour_pressure, Mean monthly vapour pressure (hPa)
  • var_id: sunshine
  • units: hrs/day
  • long_name: Monthly mean hours of bright sunshine per day (hrs/day)
  • names: sunshine, Monthly mean hours of bright sunshine per day (hrs/day)
  • long_name: Monthly mean temperature (average of the mean monthly maximum and minimum) (degC)
  • var_id: mean_temp
  • units: degC
  • names: Monthly mean temperature (average of the mean monthly maximum and minimum) (degC), mean_temp
  • units: days
  • var_id: air_frost
  • long_name: Number of days of air frost (days)
  • names: air_frost, Number of days of air frost (days)
  • units: days
  • long_name: Number of days of air frost (days) per meaning period
  • var_id: airfrost_tmean_abs
  • names: Number of days of air frost (days) per meaning period, air_frost
  • units: days
  • long_name: Number of days of ground frost (days)
  • var_id: ground_frost
  • names: ground_frost, Number of days of ground frost (days)
  • units: days
  • long_name: Number of days of ground frost (days) per meaning period
  • var_id: groundfrost_tmean_abs
  • names: Number of days of ground frost (days) per meaning period, ground_frost
  • units: days
  • long_name: Number of days per meaning period having a rainfall >= 1 mm (days)
  • var_id: raindays_tmean_abs
  • names: Number of days per meaning period having a rainfall >= 1 mm (days), rain_days
  • units: days
  • var_id: wetdays_tmean_abs
  • long_name: Number of days per meaning period having a rainfall >= 10 mm (days)
  • names: wet_days, Number of days per meaning period having a rainfall >= 10 mm (days)
  • units: days
  • long_name: Number of days per month having a rainfall >= 1 mm (days)
  • var_id: raindays_tmean_abs
  • names: rain_days, Number of days per month having a rainfall >= 1 mm (days)
  • units: days
  • var_id: wetdays_tmean_abs
  • long_name: Number of days per month having a rainfall >= 10 mm (days)
  • names: wet_days, Number of days per month having a rainfall >= 10 mm (days)
  • units: days
  • long_name: Number of days per month with snow falling (days)
  • var_id: snow_fall
  • names: snow_fall, Number of days per month with snow falling (days)
  • long_name: Number of hours of daylight per day.
  • var_id: daylighthours
  • units: hr/day
  • names: rainfall, daylighthours, Number of hours of daylight per day.
  • units: Ratio of sunshine (sunshine from cloud / observed sunshine)
  • long_name: Ratio of the daily fraction of sunshine derived from cloud amount. Sunshine fraction from total cloud / Sunshine fraction observed baseline.
  • var_id: sunshineratio
  • names: sunshineratio, Ratio of the daily fraction of sunshine derived from cloud amount. Sunshine fraction from total cloud / Sunshine fraction observed baseline.
  • long_name: Relative Humidity (%)
  • units: %
  • var_id: rel_hum
  • names: Relative Humidity (%), rel_hum
  • var_id: axis_0
  • var_id: bounds_rlat
  • var_id: bounds_rlon
  • units: m
  • long_name: eastings
  • var_id: eastings
  • names: eastings
  • long_name: latitude in rotated pole grid
  • standard_name: grid_latitude
  • var_id: rlat
  • units: degrees
  • names: latitude in rotated pole grid, grid_latitude
  • var_id: rlon
  • long_name: longitude in rotated pole grid
  • standard_name: grid_longitude
  • units: degrees
  • names: longitude in rotated pole grid, grid_longitude
  • var_id: meaning_period
  • long_name: meaning_period
  • names: meaning_period
  • units: m
  • long_name: northings
  • var_id: northings
  • names: northings
  • var_id: rotated_pole
  • names: rotated_pole

Co-ordinate Variables

  • standard_name: latitude
  • var_id: lat
  • long_name: latitude
  • units: degrees_north
  • names: latitude, lat
  • var_id: lon
  • units: degrees_east
  • standard_name: longitude
  • long_name: longitude
  • names: longitude, lon
  • long_name: time
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
1961-01-01T00:00:00
End time:
1990-12-31T23:59:59
Geographic Extent

 
61.1101°
 
-8.5649°
 
4.4195°
 
49.5310°