INDOFLUX NETWORK

POSSIBLE CONTRIBUTION OF RRL BHUBANESWAR

DR. G. ROY CHAUDHURY

SCIENTIST

REGIONAL RESEARCH LABORATORY, BHUBANESWAR

Comparison of different greenhouse gases

CO2 CH4 CFC-11 CFC-12 N2O

Concentration

Pre-industrial

Current

ppm

280

370

ppm

0.8

1.74

ppt

0

268

ppt

0

484

ppb

288

314

Atmospheric lifetime

(yrs)

50-100

10 45 130 114

Radiative forcing per molecule relative to CO2

1 23 4,000 15,800 296

WORK DONE AT RRLWORK DONE AT RRLGROUP WORKING IN GHG SINCE 1991

PART OF NATIONAL METHANE CAMPAIGN, METHANE ASIA CAMPAIGN, ASIAN LOW-COST GHG ABATEMENT TECHNOLOGY, NATIONAL COMMUNICATION TO UN FRAMEWORK CONVENTION on CLIMATE CHANGE etc.

GHG FLUX COLLECTION, SOPHISTICATED ANALYZER & PORTABLE DATA COLLECTORS AVAILABLE

WORK DONE AT RRLWORK DONE AT RRL•DRY & WET PRECIPITATION CHEMISTRY AT RURAL BACKGROUND SITE SINCE 1996 – LONGEST RECORD ON FORESTED AREA IN INDIA

•AEROSOL COLLECTION & ANALYSIS THROUGH PASSIVE AND ACTIVE COLLECTORS

•EFFECT OF ATMSOPHERIC POLLUTION – CORROSION OF STRUCTURAL MATERIALS

INTERNATIONAL COLLABORATIONS

• METEOROLOGY INSTITUTE, STOCKHOLM UNIVERSITY, STOCKHOLM

• SWEDISH ENVRIONMENTAL LABORATORY, GOTHENBURG

• MATERIALS CORROSION INSTITUTE, STOCKHOLM

• COMMITTEE ON ATMOSPHERIC PRECIPITATION – STEERING COMMITTEE MEMBER

• SCIENTIFIC MEMBER, MALE DECLARATION

FACILITIES & EXPERTISE

AUTOMATIC WETONLY & BULK COLLECTORS

PASSIVE AEROSOL COLLECTORS

ACTIVE AEROSOL COLLECTORS – DENUDERS

AUTOMATIC WEATHER MONITORING STATION

SOLAR CELL/BATTERY OPERATED

DOWNLOADED AT REGULAR INTERVALS TO A LAPTOP

* TEMPERATURE

* WIND DIRECTION & SPEED

* RELATIVE HUMIDITY

* RAIN FALL

INSTRUMENTAL FACILITIES

•STATE-OF ART EQUIPMENTS

•GC WITH METHANIZER

•IC . XRD/XRF

•ICP-MS . NMR

•SEM . TEM

•AETHALOMETER

•GRIMM’S SPECTROMETER

IMPORTANT FINDINGS• GHG emission from rice and pulse cultivation• RiceMethaneE SIF 3.3gm/m2 Rainy season

1.97gm/m2 Kharif seasonNO2

0.01 mgm/m2

7.11 mgm/m2

Pulses 3.38-4.1 NO2

IMPORTANT FINDINGS

• Factors affecting

1. Soil temperature

2. Fertiliser addition

3. Soil redox potential

4. Soil organic content

IMPORTANT FINDINGS

• WET AND BULK COLLECTOR

6.6 AND 7 µEQ/LT RESPECTIVELY ACID VALUE.

THE VALUES OF ANIONS LIKE Cl, F, NO3, SO4, ACETATE AND FORMATE INCREASING

IMPORTANT FINDINGS

ACIDITY OF RAINWATER, AEROSOLS & PARTICULATE MATTER INCREASING

NUMBER OF ACIDIC (pH <5.6) RAIN EVENTS INCREASING

NEUTRALIZING/ BUFFERING CAPACITY DECREASING

POLLUTANTS ARE MOSTLY OF CONTINENTAL ORIGIN

CORROSION OF MATERIALS ARE SIGNIFICANT

INDOFLUX – BASIC REQUIREMENTS

•NETWORK SITES IN SOURCE/ SINK REGIONS

•LONGTERM MEASURING EXPERIENCE & EXPERTISE

•DISTINCTION BETWEEN NATURAL & ANTHROPOGENIC FLUXES THROUGH SOURCE APORTIONMENT

•QA/QC & INTERCOMPARISON IN NET-WORK MODE

OBJECTIVES OF RRL STUDY

•TO SET-UP A MICRO-MET TOWER WITH ALL SENSORS/REGULATORS AS PER INDOFLUX PROTOCOL AT THE EXISTING RURAL STATION OF BHUBANESWAR

•TO ENGAGE GAS SENSORS FOR CONTINUOUS MONITORING OF TRACE COMPONENTS LIKE WATER VAPOR, CO2, NET ECO-SYSTEM EXCHANGE, BIOMASS ENTHALPY CHANGE AND METABOLIC HEAT STORAGE, TRACE GAS EMISSIONS FROM TERRESTRIAL SOURCES etc.

OBJECTIVES OF RRL STUDY-2

•TO CONTINUOUSLY MONITOR AEROSOL, DRY AND WET DEPOSITIONS

•TO MONITOR CHANGES IN CHEMICAL COMPOSITION OF SOIL, PARTICULARLY NUTRIENT DEPLETION/AVAILABILITY

•TO ANALYZE SAMPLES AND INTERPRET DATA

•TO PARTICIPATE IN QA/QC EXERCISE

THANKS