Sub-Offices of M.C. Gangtok
M.O. Gangtok
Established on 7th
May 1955 in Raj Bhawan Area (Latitude: 27020’ N; Longitude 88038’
E: Altitude: 1765 m above mean sea level), the Observatory records Synoptic or
Surface Meteorological Data at 03,06,09 and 12 UTC and also upper air data
through pilot balloon observation manually at 01/ 02 and 11/12 UTC daily.
Thermometers namely Maximum, Minimum, Dry Bulb & Wet Bulb thermometers are
kept inside a Singles Stevenson Screen (Dry Bulb gives the air temperature at
an instant. Relative Humidity & Dew Point Temperature of air is determined
from the Hygrometric Table corresponding to the Dry Bulb & Wet Bulb
temperatures at the instant). The Self-Recording Instruments namely Thermograph
to record air temperature & Hygrograph to record Relative Humidity of air
on daily basis are kept in Double Stevenson Screen. Ordinary Rainguage to
record daily total rainfall and the Self-Recoding Rainguage are installed
inside the observatory, besides Open Pan Evaporimeter to record the evaporation
of air. Charts for all the Self-Recording Instruments are changed at 0820 hrs
IST daily. The Wind Instruments namely Wind Vane to record the direction of air,
Anemometer to record the wind speed and Sunshine Recorder are installed on the
Pilot Balloon Observation Tower. From this tower, Upper Air Circulation over
Gangtok is observed manually from instrument known as Optical Theodolite. Upper
Data are analyzed digitally through Hand Held Data Logger. Both the Kew Pattern
(K.P.) Barometer and Self-Recording Barograph installed in the Observatory
Office records the Atmospheric Pressure at any instant.
Established in July
1978 in Indian Council for Agricultural Research (ICAR) Farm for North Eastern
Hill (NEH) Region (Latitude: 27020’ N; Longitude 88037’
E: Altitude: 1322 m above mean sea level), the Observatory records Synoptic or
Surface Meteorological Data at 03,06 and 12 UTC from the Meteorological
Instruments as those installed at M.O. Gangtok and records soil temperatures at
depths of 5, 20, 50 and 100 cm respectively at 0700 & 1400 Local Mean Time
(LMT). It also records the daily Radiation Data of Incoming Solar Radiation
through the Pyranometer and analyzes the data through digitally through Data
Logger.
Established in June 2000 on the ground floor of private
accommodation located at Daragaon Tadong, at a distance of 5 km from Gangtok
city, it regularly records tremors /earthquakes on charts mounted on
instruments called Seismograph on regular basis; and downloads and washes the
seismograph charts daily at 0800 hrs IST. Tremors of light/moderate intensity
are reported daily to M.C. Gangtok and DGM (Seismology) New Delhi for record.
Tremors/Earthquakes actually felt at the Station are immediately reported to
suitable State Authorities at Gangtok and at the district levels, Disaster
Management Cell of Civil Defense Department Gangtok, M.C. Gangtok and D.G.M.
(Seismology) New Delhi and report of damage of property and loss of human life,
if any, are collected from the State authorities.