| Site Change Date |
Description |
| 01-Jan-1941 |
CODE 132 Anem installed BEFORE stn-openned/wind-data-began - any charts/rolls? |
| 01-Jan-1942 |
STATS CODES 33, began BEFORE station opened on 19431001 |
| 17-Jul-1943 |
Reporting station established. Office on ground floor of airport terminal building. Dines PT anemometer recording began probably in 1943. Wind vane 60-70' above ground level. recorder in office on 1st floor of terminal building. |
| 01-Aug-1943 |
Rainfall, and dry and wet bulb temperature observations commenced at site 60 yds S of old combined control tower and terminal building. These records ceased in September 1945 and recommenced at the same site in December 1945. Height of raingauge rim given as 99' amsl. Pressure observations commenced with a barometer in Met Office. Cistern height 116' amsl. These observations also ceased in September 1945, and recommenced in the new met Office in December 1945. Height of cistern 129' amsl. |
| 01-Oct-1943 |
Station opened M35726461. |
| 11-Oct-1945 |
Meteorological office closed. Rainfall and Dines anemometer records continued with flying control and aeradio staff doing readings. |
| 01-Aug-1946 |
New meteorological office opened on 1st floor of terminal building. |
| 01-Jan-1949 |
Sunshine observations commenced. Sunshine recorder on roof of old terminal building, near N end. During construction of new terminal building the sunshine recorder was at an unknown temporary site. |
| 07-Jul-1953 |
New meteorological office opened following transfer of main reporting and forecast sections from Wigram to Harewood. New office in CAA building about 9 chains SE of ATC tower. Raingauge, screen and thermometers moved to new site, 250 yds SE of ATC tower, and 50 yds E of Met office then in use. Height of rim was given as 94' amsl. Maximum and minimum thermometers installed. (Site 2) Barometer cistern height in new office 102' amsl. Sunshine recorder on terminal roof, near S end. New Dines PT anemometer set up in alcove in NW corner of office. Vane head 40' above ground level. |
| 01-Sep-1953 |
Radar ME7 soundings commenced. |
| 01-May-1954 |
Radiosonde soundings at 72.2 mHz commenced following the closure of the programme at Hokitika. |
| 04-Apr-1956 |
Raingauge, screen and thermometers moved to new site, 100 yds E of ATC tower. (Site 3) Height of rim given as 97' amsl. |
| 01-Jan-1960 |
Solar radiation observations commenced. Eppley pyranometer was installed on the roof of the terminal building, adjacent to the sunshine recorder. A Brown recorder was installed in the forecast room. |
| 01-Feb-1960 |
Barometer moved to new ofice. Cistern height 112' amsl. |
| 01-Oct-1960 |
Raingauge, screen and thermometers moved to new site, 500 yds E of ATC tower and 80 yds N of traffic roundabout at entrance to airport. (Site 4) Height of rim given as 97.6' amsl. Surrounded by buildings and tarmac. Rainfall probably unaffected but minimum temperatures may be slightly higher than they would be in a more open exposure on the airfield. |
| 01-Feb-1961 |
New meteorological office opened on 1st floor of new terminal buildings. |
| 01-Nov-1961 |
Remote indicating wind vane and cup generator anemometer installed on mast, 33' high, at E edge of airfield, 27 chains SW from Met Office. Good exposure. |
| 20-Mar-1964 |
Horizon profile drawn. |
| 24-Nov-1964 |
Radar winds CR353 commenced. |
| 18-May-1973 |
Horizon profile amended. |
| 15-Nov-1974 |
Met Office moved to new quarters in extension to airport terminal building. |
| 11-Mar-1975 |
Routine inspection. Photos taken. |
| 24-May-1975 |
Climate enclosure moved to site 400 m S of Met Office. Site 5. Surrounding ground level and well drained. Exposure very good in all quarters. |
| 30-Apr-1976 |
Last climate readings taken at site 4. An overlap of 10 months where readings were done at both sites 4 and 5. |
| 04-Jun-1976 |
Routine inspection. |
| 16-Nov-1976 |
Wind measurements from Munro anemometer near SE edge of airfield ceased. New Munro anemometer mast erected 262 T. 70 yds from the Variable Omni Range Beacon (VOR). Exposure very good in all quarters. |
| 30-Dec-1976 |
Last dry and wet bulb temperatures taken at car park site. Manual raingauge and small screen had been used for synoptic reports. Site enclosed by buildings abd tar seal, and so temperatures likely to have been higher than in a more open exposure. |
| 31-Dec-1976 |
Philips temperature and dew point remote indicators installed. |
| 09-Mar-1977 |
Routine inspection. |
| 21-Sep-1979 |
Radiosonde recordings at 403.1 mHz commenced. |
| 20-Nov-1983 |
WF100 radar commenced. |
| 23-Sep-1986 |
Routine inspection and overhaul of anemometer. |
| 07-Oct-1986 |
Thermograph replaced. |
| 26-Nov-1986 |
Barometer comparisons carried out. Satisfactory results. |
| 31-Mar-1987 |
Radiosonde soundings ceased. |
| 04-May-1987 |
Routine inspection. Annual calibration and maintenance of EDR. Airport staff have installed a new aerial since last inspection. It will shade the pyranometer briefly every day. |
| 10-Jun-1987 |
Sunshine recorder resited 71 cm from previous site to avoid shading by masts. |
| 31-Aug-1987 |
Radiosinde redings at 403.1 mHz ceased. |
| 03-May-1988 |
Replacement grass minimum tehrmometer sent. |
| 08-Aug-1988 |
Routine annual calibration of solar radiation ERD. Eppley PSP replaced. |
| 01-Oct-1989 |
Darton barometer 3420 installed. Tubular electric light mounted behind scale. In direct sunlight at sunset, venetian blinds fitted to window to provide shade. Darton S3269 installed out of direct sunlight with good exposure. |
| 05-Oct-1989 |
Routine annual calibration of EDR. Modified power supply, s/n26, installed. Replacement PSP installed. Printer dismantled and adjustments checked. |
| 17-Jun-1993 |
Routine inspection. |
| 09-Jul-1993 |
Routine inspection. |
| 27-Jun-1994 |
Christchurch Airport AWS, M35718464, opened but its data are being archived under H32451/93780. |
| 01-Aug-1994 |
M35727465 NE 300 m. Met Office closed but data from H32452/93781 are being archived under this number. |
| 09-Jun-1995 |
Annual calibration and maintenance visit - wind speed and direction, humidity, barometer were all replaced, two vaisala sunshine recorders were installed for evaluation after re calibration. |
| 13-Apr-1996 |
Annual calibration and maintanance visit, wind speed and direction, barometer, humidity, and all temperature all routinely replaced. |
| 01-Jul-1996 |
Inspected, no problems. |
| 13-Apr-1997 |
Annual calibration and maintenance visit, wind speed and direction, pressure, humidity, air temp, grass min temp, earth temps all routinely replaced. |
| 28-Apr-1997 |
Raingauge replaced. |
| 30-Jun-1997 |
Routine inspection. |
| 28-Apr-1998 |
Annual calibration and maintenance visit, wind speed and direction, humidity, pressure and solar radiation all routinely replaced. |
| 26-Jun-1998 |
Routine inspection.Smoke from a nearby high temperature incinerator hamper approaches in certain winter conditions. |
| 22-Mar-1999 |
Annual maintenance and calibration visit, wind speed and direction, pressure, humidity all routinely replaced. |
| 26-May-1999 |
Routine inspection.Incinerator smoke still creates problems. |
| 22-Mar-2000 |
Annual maintenabce and calibration visit. Routinely replaced pressure, humidity, wind speed, wind direction, air and earth temps, solar radiation and rainfall. |
| 16-Jun-2000 |
Routine inspection. |
| 27-Mar-2001 |
Annual maintenance and calibration visit. Wind speed and direction, humidity, barometer and earth probe routinely exchanged. |
| 30-May-2001 |
University of Canturbury accoustic sounder installed for 3 month trial. |
| 06-Jun-2001 |
Routine inspection |
| 23-Nov-2001 |
Replaced PC as commc error occuring between PC & modem. |
| 05-Mar-2002 |
Cleaned Visibility sensor. |
| 11-Apr-2002 |
Replaced heater blower,changed modem fuse, confirmed moden line lightning protection,reset sutron base year. |
| 30-Apr-2002 |
Annual calibration. Routinely replaced wind speed and direction, humidity, pressure and solar radiation. |
| 11-Jun-2002 |
Routine inspection. |
| 14-Jun-2002 |
Replaced heat/blower due suspect blower. U23 chip on process brd replaced,offest cal done,noticed excessive noise on reeceiver-should be replaced. |
| 26-Sep-2002 |
Upgrade 3C software. Fitted new eprom to CT12K. |
| 16-Mar-2003 |
ACNZ traced fault to UPS & dbypassed it. |
| 07-Apr-2003 |
UPS replaced. Software updated to V1.7.2. |
| 08-May-2003 |
Annual calibration. Routinely replaced pressure, rainfall, humidity, wind speed, wind directiond, air temp and grass min. Temp screen replaced. Grs min probe and conduit replaced. |
| 10-Jun-2003 |
Routine inspection.A few minor technical problems with the new MetCoder. No other problems. |
| 17-Mar-2004 |
Installed GPRS to spare port 2. Updated Plus software. 1min data PC crashed - rebooted OK. |
| 19-Apr-2004 |
Replaced suspect grass min probe. |
| 01-Jun-2004 |
Routine public relations visit.No problems. |
| 10-Jun-2004 |
Annual calibration. Routinely replaced grass min earth probe, solar radiation, pressure, humidity, wind speed and direction. |
| 29-Jul-2004 |
Updated to 3artu_51.1. |
| 24-Jan-2005 |
Replaced Harvest to upgrade software. |
| 02-Feb-2005 |
Nil data from ceilomoter due circuit breaker trip. Reset OK. |
| 11-Apr-2005 |
Clean alarms raised. Fortnightly clean done later this day. |
| 24-Apr-2005 |
Nil data from Sutron due lightning strike in area. Restart SDL - OK. |
| 26-Apr-2005 |
LDN fault. Changed Harvest to upgrade new software. |
| 25-May-2005 |
Annual calibration. Routinely replaced pressure, humidity, wind speed, and wind direction. |
| 06-Jul-2005 |
Routine inspection. High temperature incinerator has been removed (see 1998 report). Some problems in manual coding of specis has shown up recently, but seem to be resolved. |
| 18-May-2006 |
Replaced pressure due to suspect cell failure imminent. |
| 18-Jul-2006 |
Annual maintenance and calibration visit. Routinely replaced wind speed and direction, solar radiation, humidity, pressure, grass min, air temp and rainfall. |
| 18-Dec-2006 |
Sunshine recorder exchanged. |
| 08-May-2007 |
Annual maintenance and calibration visit. replaced grass minimum, 5cm, 10cm, pressure wind and temp/RH sensors. |
| 21-Jun-2007 |
Routine inspection. All dislike new Sigmet numbering system. Multi layed programs on computer screens has lead to wrong icon being "clicked" with Metars not actually being transmitted. |
| 18-May-2009 |
Routine inspection. No problems apart from a difference of up to 0.6hPa between controllers Vaisala readout and the AWS. New Control Tower due for occupation 16-10-2009. |