064e779d-8cdd-6b71-bb67-152dc69ca95a urn:uuid NIWA National Institute of Water and Atmospheric Research curator@niwa.co.nz +64 4 386 0300 +64 4 386 0574 http://www.niwa.co.nz WWW:LINK-1.0-http--link Website of the National Institute of Water and Atmospheric Research, New Zealand - experts in environmental science Data curator 2022-11-15T16:45:43 2014-04-08T16:20:23 creation ISO 19115-3 https://dc.niwa.co.nz:/niwa_dc/srv/eng//metadata/064e779d-8cdd-6b71-bb67-152dc69ca95a Virtual Climate Station Network 1960-01-01T11:50:00 Estimates of about 10 daily climate parameters at a regular about 5km grid around New Zealand from station data. Details for the Virtual Climate Network (VCSN) are listed below. VCSN data are available via http://cliflo.niwa.co.nz. To access the VCSN datatype, go to the Database Query Form, click on the dropdown tab for the "Datatype Selection" box in section 1 of the form and scroll down for "Special Datasets". Note that only one of these special datatypes can be active on the Database Query Form at the same time. This datatype has two choices: • Selected stations over a date range (maximum of 10 stations per query) • All 11491 VCSN stations for one day (uses the start date). Note if the "File Download Option" is "HTML Table" then output is forced to be "Excel File" (to accomodate the number of rows). Field Descriptions: • VCSN Station Identifier: This is always the agent number of the station i.e. the "station identifier" in the Database Query Form is ignored. See also the note below. • Date: This is the local day. The date always includes the hour/minute "00:00" and refers to the day starting at the date indicated. Note carefully the time range of the data in the following fields e.g. "at 9am", "from 9am", "to 9am", etc, especially when comparing with datatypes from other sources. (See note on time range change below.) • MSLPress(hPa): Pressure reduced to Mean Sea Level in hPa at 9am local day. • PET(mm): 24 hour Penman Potential Evapotranspiration total in mm from 9am local day. • Rain(mm): Total amount of rain in mm from 9am local day • RH(%): Relative humdity in percent at 9am local day. • SoilM(mm): Soil moisture in mm from 9am local day calculated from rainfall and evapotranspiration. The base value is -150mm ("permanent wilting point") based on "soil store capacity". A value of "0" indicates the soil is at "field capacity" (amount of water held in the soil after the excess has drained away). A value greater than "0" indicates runoff. See the note below "Note on Soil Moisture Calculation" below for more information. • TempEarth10cm(C): The 10cm earth temperature in degC at 9am local day. • Radn(MJ/m2): Amount of accumulated global solar radiation in MJ/m2 (Mega Joules per square metre) from midnight local day. • Tmax(C): Maximum tempereature in degC from 9am local day. • Tmin(C): Minimum temperature in DegC to 9am local day. Note take care when comparing this with the daily combined "Form 301" minimum temperature - this will be one day earlier. • VapPress(hPa): Vapour pressure in hPa at 9am local day. • WindSpeed(mps): Mean wind speed in m/s at 10m above ground level over 24 hours from midnight local day. Produce spatial maps of climate parameters and their statistics. NIWA ++ 64 4 386 0300 ++ 64 4 386 0574 301 Evans Bay Parade, Hataitai Wellington 6021 New Zealand a.tait@niwa.co.nz Andrew Tait Climate Scientist climatologyMeteorologyAtmosphere New Zealand 166.10 178.84 -46.70 -34.20 1960-01-01T00:00:00 climate networks climate stations data acquisition https://dc.niwa.co.nz/niwa_dc/srv/metadata/064e779d-8cdd-6b71-bb67-152dc69ca95a WWW:LINK-1.0-http--metadata-URL Point of truth URL of this metadata record http://cliflo.niwa.co.nz WWW:LINK-1.0-http--link Link to the New Zealand's National Climate Database https://niwa.maps.arcgis.com/home/item.html?id=5751db9021134f87a0292eb669a97199 WWW:LINK-1.0-http--link ArcGIS Online Public Layer (View)