proposed integrated complex for delhi judicial academy

Rapid Environmental Impact Assessment (REIA) Study for Proposed Integrated Complex for Delhi Judicial Academy,
National Law School, and National Institute for Mediation & Conciliation at Dwarka, New Delhi
East to South-South-West.
aspect
Delhi area is generally flat except for a gentle rise to form a central ridge from North-North-
Micrometeorology
Ambient
Quality
Ambient
Quality
Air
Noise
Ground Water
Quality
Ground Water
Hydrology
Table 4.1
Summary of Data Collection from Various Sources
mode of data
collection
Primary
Secondary
Primary
Primary
and
parameters monitored frequency source (s)
Temperature, Humidity,
Wind Speed, Wind
Direction, Rainfall
SPM, RPM, SO2, NOX,
CO
Hourly noise equivalent
levels (L day , L night , L dn )
Primary Physico – chemical
parameters
Secondary
Ground water table, rate
of recharge, available
yield,
aquifer
characteristics
Soil Quality Primary Physico Chemical
parameters
Three months
(March to May
2006)
Twice a week for 4
weeks for three
months
Once in a season
Once in a season
Field Studies and
Indian
Meteorological
Department (IMD)
Field Studies
Field Studies
Field Studies
- Central Ground
Water Board
Once in a season
Field Studies
Vegetation Secondary Type of species - Forest Department
Socio Economic Secondary Demographic and socio
economic parameters,
physical and social
infrastructure
- Census Data 2001,
DDA, Other
published reports
4.3 Climate
The average annual rainfall in the NCT of Delhi is 612 mm. The rainfall over NCT of Delhi
generates surface water run-off through streams, drains and as sheet flow. Delhi being highly
urbanized the percentage run-off is high due to the extensive paved area. The average annual
evaporation is about 2540 mm in Delhi. The mean relative humidity is 66%.
The climatic regime of Delhi falls under the semi arid type, as influenced by the considerable
distance of the city from the sea and prevalence of continental winds during major portion of the
year. Extreme dryness with hot summers and cold winters are characteristics of the climate. The
year can broadly be divided into four seasons. The cold season starts towards the later half of
November when both day and night temperature drop rapidly with the advance of the season.
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