Radiation measurements in Estonia Kristjan Nurmela, Ain Kallis Davos 2015
Estonia
Estonia parameters: Latitude and Longitude 59° 00' N, 26° 00' E Population 1.3M (69.1% Estonians, 25.2% Russians) Area 45 339 km2 Maximum height: 317 (m.a.s.l) Coldes: -43.5 °C 17th of January 1940 Hottest: 35.6 °C 11th of August 1992 Common temp. range : -10 to +20 °C
Estonia in IPC events PMO6-850405 Ain Kallis IPCs 1995-2010 (5)
Actinometric network in Estonia 8x global radiation 5x UVE 13x sunshine duratation Narva Tallinn Jõhvi Nigula Haapsalu Kuusiku Ristna Tiirikoja Jõgeva Vilsandi Pärnu Viljandi Tõravere Roomassaare Sõrve Võru Longer time series of radiation measurements have been obtained from Tartu-Tõravere (since 1950) and Tiirikoja near Lake Peipsi (since 1956).
Tartu-Tõravere BSRN station radiation sensors: Solar Light Microtops II direct irradiance photosynthetically active radiation, direct and global UVS-e-t Eppley NIP global, diffuse, reflected irradiance CUVB 1 downward longwave irradiance LI-COR 190SA LI-COR 190SA upward longwave irradiance total ozone measurements Janiševski AT-50 CGR 4 + CVF 4 CUV 3 UV erythemal radiation Eppley PIR net radiation CM-21 + CVF 3 UVA + UVB GB-1 J. Reemann (1965- ) CM-21 + CV 2 CMP-21 CVF 4 306 nm UVB BSRN- Baseline Surface Radiation Network Tartu-Tõravere Station became a BSRN candidate in 1993, since 1999 it has operated as a BSRN station. It belongs to the Estonian Environment Agency (former Estonian Meteorological and Hydrological Institute) CHP 1
Data acquisition in Tõravere station Avg of 10 per min. CR10X New data every 5 min PC Engeneer 1st look on data (every workday) Calculation of values for instruments (PAS,XLS) Data sending to databases Once a month (our own,BSRN)
New Instruments since 2010: Kipp&Zonen 2AP sun tracker PFR for AOD (atm on repair & cal) 1/3 on the way to full automatisation using Vaisala MAWS stations (troubleshooting)
Calibrations PMO6 NIP AT-50 Tõravere pyranameters Backup AT-50’s Other st. pyranometers CHP 1
7th of June 2015 (sunny sunday)
Future plans: Vaisala Observation Network Manager Connecting all Tõravere station radiation instruments to Vaisala MAWS system Start calibrating all our instruments more regularly Replace J. Reemann GB-1 net radiation with pyranometers and pyrgeometers calculation.
Thank you for your attention Kristjan Nurmela kristjan.nurmela@envir.ee Agent 007