Sachchida Nand Tripathi

PhD (Reading University, UK)

Professor

Specialization


Research Interest

 

Education

  • PhD, (Environmental Engineering), University of Reading, UK (2000)
  • M.Tech, (Environmental Engineering), MNIT-Allahabad (1995)
  • B.Tech, (Civil Engineering), IIT-BHU (1992)

Website(s)

 

CV

  • Air Pollution and its Control

  • Earth and Environment

  • Atmospheric Physics and Chemistry

  • Fate and Transport of Contaminants in Natural Systems

  • Environmental Quality and Pollution

  • Computational Methods in Engineering

  • Advanced Mathematics for Civil Engineers

  • Modeling of Natural Systems

  • Talukdar, S., S.N. Tripathi et al., 2021, Air Pollution in New Delhi during Late Winter: An Overview of a Group of Campaign Studies Focusing on Composition and Sources, Atmosphere, 12, 1432, DOI: 10.3390/atmos12111432.

  • Ginn, O., S.N. Tripathi et al., 2021, Detection and quantification of enteric pathogens in aerosols near open wastewater canals in cities with poor sanitation, Environmental Science and Technology, 55, 14758-14771, DOI: 10.1101/2021.02.14.21251650.

  • Khattri, P., S.N. Tripathi et al., 2021, Aerosol Loading and Radiation Budget Perturbations in Densely Populated and Highly Polluted Indo-Gangetic Plain by COVI D-19: Influences on Cloud Properties and Air Temperature, Geophysical Research Letters, 48, DOI: 10.1029/2021GL093796.

  • Jha, S.K., Mohit Kumar, S.N. Tripathi, et al., 2021, Domain adaptation based deep calibration of low-cost PM2.5 sensors, IEEE Sensor Journal, DOI: 10.1109/JSEN.2021.3118454.

  • Thamban, N., S.N. Tripathi et al., 2021, Evolution of size and composition of fine particulate matter in the Delhi megacity during later winter, Atmospheric Environment, 207, 118752, DOI: 10.1016/j.atmosenv.2021.118752

  • Niranjan, R., K.P. Mishra, S.N. Tripathi and A.K. Thakur, 2021, Proliferation of lung Epithelial cells is regulated by the mechanisms of autophagy upon exposure of soots, Frontiers in Cell and Developmental Biology, 9:662597, DOI: 10.3389/fcell.2021.662597.

  • Shukla, A.K., V. Lalchandani, S.N. Tripathi et al., 2021, Real-time quantification and source apportionment of fine particulate matter including organics and elements in Delhi during summertime, Atmospheric Environment, 261, 118598, DOI: 10.1016/j.atmosenv.2021.118598.

  • Rastogi, N., Rangu Satish, S.N. Tripathi et al., 2021, Diurnal variability in the spectral characteristics and sources of water-soluble brown carbon aerosols over Delhi, Science of the Total Environment, 794, 148589, DOI: 10.1016/j.scitotenv.2021.148589.

  • Mishra, G., S.N. Tripathi et al., 2021, Interaction of cesium bound fission product compounds (CsI and CsOH) with abundant inorganic compounds of atmosphere: Effect on hygroscopic growth properties, Journal of Hazardous Materials, 418, 126356, DOI: 10.1016/j.jhazmat.2021.126356.

  • Ghosh K., S.N. Tripathi et al., 2021, Effect of charge on aerosol microphysics of particles emitted from a hot wire generator: Theory and experiments, Aerosol Science & Technology, DOI: 10.1080/02786826.2021.1931011.

Current Ph.D. Students



Ashutosh Shukla

Cont.

Source apportionment using UMR and PMF and network analysis

Sidyant Kumar Rao (Jointly with Dr. Sanjay Kumar, AE)

Cont.

Study of shock wave and droplet interaction

Manish Kumar

Cont.

Study of Aerosol deposition in piping system during severe nuclear accident and its validation with ASTEC

Vipul Lalchandani

Cont.

Vipul Lalchandani Cont. Chemical characterization of particulate matter, and understanding organic aerosol sources and evolution at downwind location of Delhi during winter season

Suneeti Mishra

Cont.

Aerosol size distribution and chemical analysis in Indian cities

Mithun Krishnan K.V.

Cont.

Seasonal and annual variations of surface energy fluxes, parameters and it’s modeling using weather research forecast models over Indo-Gangetic basin

Himadri Sekhar Bhowmik

Cont.

Chemical characterization and source appointment of aerosols using real time instruments

Vaishali Jain

Cont.

Chemical characterization and source appointment of aerosols using real-time instruments


Current M.Tech. Students



Parmesh Lawani

Cont.

Calibration of low cost sensor

Himanshu Patel

Cont.

Source Apportionment

Ravi Prakash Maurya

Cont.

WRF-Chem Modelling

Sant Kumar Jha

Cont.

WRF-Chem Modelling



Project Members


Veerendra Sahu

Post Doc Fellow

Air quality monitoring using low cost sensor of Delhi.

Sandeep Madhwal

Post Doc Fellow

Air quality monitoring using low cost sensor in Lucknow

Mohit Kumar

Post Doc Fellow

Deep learning based calibration of air quality sensors

Vishnu Murari

Post Doc Fellow

Identification of aerosol source at different locations in India

Shamitaksha Talukdar

Post Doc Fellow

Source apportionment study in Delhi

P. Pranav Kumar

Project Associate

Calibration of air quality sensors

Amit Vishvakarma

Project Associate

Calibration of air quality sensors

Ravi Sahu

Post Doc

 

Harish C. Vishwakarma

Assistant Project Manager

AERONET and MPLNET site maintenance, Technical work and official work for Projects.

Hari Shankar

Sr. Project Mechanic

Technical work and official work for Project and Lab.



Past Members


Ph.D. Thesis Student


Gaurav Mishra

2021

Growth characteristics of cesium compound aerosols under various saturation conditions.
Current position: Research Associate under my guidance in Department of Civil Engineering Indian Institute of Technology-Kanpur

Kunal Ghosh

2021

Role of ion in aerosol microphysical processes (modeling and experimental studies).
Current position: Postdoctoral Fellow, under my guidance in Department of Civil Engineering, Indian Institute of Technology-Kanpur

Navaneeth M.Thamban

2021

Evolution of size, composition and mixing state of carbonaceous aerosols in Indo-Gangetic Plain.
Current position: Postdoctoral Fellow, University of Manchester, UK

Anil Kumar Mandaria

2021

Impact of ambient relative humidity on the growth and evolution of organic aerosol.
Current position: Postdoctoral, CESAM Chamber, CNRS - LISA, Créteil, France

Anubhav Dwivedi (Jointly with Dr. Naveen Tiwari, CHE)

2020

Aerosol nucleation in mixing chamber under various flow conditions
Current Position: Postdoctoral Fellow, Aarhus University, Denmark

Manish Joshi

2018

Formation and evolution characteristics of nuclei mode particles in dense atmospheric and confined aerosol environments.
Current position: Scientific Officer 'E', BARC, Mumbai
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Shamjad P.M.

2017

Impact of carbonaceous aerosol absorption and mixing state on direct radiative forcing in Kanpur-India.
Current position: Postdoctoral Fellow, Aarhus University, Denmark
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Chandan Sarangi

2017

Understanding aerosol­surface­cloud­rainfall interactions within Indian summer monsoon region.
Current position: Postdoctoral Fellow, Pacific Northwest National Laboratory, Washington, USA
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abhishek Chakraborty

2016

Fog and organic aerosols interactions: processing, sources, and composition.
Current position: Postdoctoral Fellow, Douai School of Engineering, Douai, France
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Deepika Bhattu

2016

Effect of aerosol size, chemical composition, mixing state and volatility on cloud condensation nuclei activity in the ambient atmosphere.
Current position: Postdoctoral Fellow, Paul Scherrer Institute, Switzerland
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Chiranjib Chaudhari

2015

Characteristics of historical climate change over Indo- Gangetic basic: Observational analysis and numirical modeling.
Current position: Catastrophe Modeler at Risk Management Solution, New Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Daya Shankar Kaul

2014

Understanding the formation of organic aerosol in urban environment during foggy and nonfoggy episodes.
Current position: Postdoctoral Fellow, Hong Kong, China
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

J. Jaidevi

2012

Effects of fine particulate matter on human health and climate.
Current position: Assistant Professor, IITRAM, Ahmedabad
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Sumit Kumar Mishra

2011

Numerical estimation of optical properties of pure and polluted mineral dust particle.
Current Position: Scientist, Radio and Atmospheric Sciences Division, National Physical Laboratory, New Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Sagnik Dey

2008

Aerosol radiative effects in Kanpur in the Indo-Gangetic basin, northern India.
Current position: Assistant Professor, Dept. of CAS, I.I.T. Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.Tech Thesis students


Saurabh Kukreti

2020

Impact of variability in initial and boundary conditions of meteorology on the simulated particulate matter concentrations over Delhi during winters using WRF-Chem.

Pratapaditya Ghosh

2020

Understanding the non-local and local contributions during a high PM2.5 loading winter episode over the megacity of Delhi using WRF-Chem

Shubham Naresh

2019

Spatial and temporal variability in ionic and metal composition of PM2.5, across five sites of Gangetic plain; seasonality in secondary inorganic aerosol and preliminary source apportionment.
Current position: Environmental Engineer, THDC India Limited, Tishikesh, Uttarakhand
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Himadri Sekhar Bhowmik

2019

Inter and Intra seasonality in carbonaceous species (EC, OC) of PM2.5 aerosol over five sites of Indo-Gangetic plain, preliminary source apportionment and case study on multi-day regional SOA formation during winter at Faridabad.
Current position: Pursuing PhD under my guidance in Department of Civil Engineering, Indian Institute of Technology-Kanpur

Saad Ahmed

2018

Application of microwave radiometer in nowcasting of convective activity.
Current position: Senior Engineer, Tata Consulting Engineers, Noida

Mithun Krishnan

2017

Seasonal dynamics of surface energy balance over a semi-natural grassland in central Indo-Gangetic Basin.
Current position: Pursuing PhD under my guidance in Department of Civil Engineering, IIT Kanpur

Geet George

2017

Characterisation of cloud vertical structure (CVS) and cloud radiative forcing (CRF) over Kanpur.
Current position: PhD Student, Max Planck Institute for Meteorology, Hamburg, Germany

Bhuvana Joshi

2016

Real time size resolved analysis of organics in Kanpur city: A comparative study between fog and no-fog periods.
Current position: Research Scholar, under my guidance in Department of Civil Engineering, IIT Kanpur

Kuntamukkala Pavan Kumar

2016

Black carbon aerosol microphysical properties variation and electron microscopy study of PM205 in Kanpur.
Current position:

Bharath Kumar
Dual B. Tech - M. Tech

2015

Source apportionment of sub micron aerosol over Kanpur.
Current position: Business Analyst, ZS Associates, Gurgaon

Karn Vohra
Dual B. Tech - M. Tech

2015

A chamber study to understand aerosol deposition phenomena.
Current position: Gurgaon

Tirthankar Chakraborty

2015

Understanding urban micrometeorology and its impact on the heat island of greater Kanpur.
Current Position: Ph.D. Student, Yale University, USA

Kundan Kumar

2015

Aerosol direct radiative forcing over Indo-Gangetic basin during pre-mansoon season using WRF-CHEM.
Current Position: Assistant Executive Engineer, Office of the Panchayat Raj Superintendent Engineer, Panchayat Raj Circle Adilabad, Tilangana

Vipul Lalchandani

2014

The need for site-, season- and instrument-specific calibrations of a
photo-reference method for determining aerosol Black Carbon
concentrations and examining color signal of Organic carbon particles.
Current Position: Pursuing PhD under my guidance in Department of Civil Engineering, IIT Kanpur

Amit Sharma

2014

Quantifying health benefits of reducing PM2.5 & ozone concentration using WRF-CHEM model.
Current position: Ahmedabad

Alabhya Mishra
Dual B. Tech - M. Tech

2014

Electrical properties of Titan and Earth atmospheres.
Current position: Bangalore

Arun Yadav
Dual B. Tech - M. Tech

2013

An evaluation of WRF-Chem model over the Indian Domain
Current position: Flipkart, Bangalore

Anubhav Dwivedi

2013

Investigation of activation kinetics of laboratory generated and ambient particles
Current position: Postdoctoral Fellow, Aarhus University, Denmark

Rosalin Dalai

2013

Role of aerosol type and mixing state on CCN activity
Current position: IIT Bhubneshwar

Akhilesh Rawal
Dual B. Tech - M. Tech

2012

Study of ion-aerosol near-cloud mechanism to explain cosmic ray-cloud-climate conundrum
Current position: in New Delhi

Shamjad P.M.

2011

Hygroscopicity, mixing state and enhanced absorption of aerosols
Current position: Pursuing PhD under my guidance in Department of Civil Engineering, IIT Kanpur

Priya Choudhry

2011

Validation of MODIS-retrieved AOD over Indo-Gangetic Plain
Current position: Evalueserve, New Delhi

Monika Srivastava

2011

Aircraft-based CCN Closure
Current position: BBD University, Lucknow

Pawan Kumar Bharti

2010

A study of inter and intra variation seasonal of surface Cloud Condensation Nuclei and chemical closure in Kanpur
Current position: SIDBI, Ludhiana

Vishnu Patidar

2009

First surface, spatial and vertical measurements of Cloud Condensation Nuclei (CCN)over Indian CTCZ region.
Current position: Environmental Engineer

Jariwala Chinmay G.

2009

An observational and laboratory study on the effects of Cloud Condensation Nuclei and black carbon aerosol on fog persistence.
Current position: Environmental Engineer, Dar AL-Handasah, Pune

Vivek Pratap Singh

2008

An experimental investigation of the effects of environmental and fog condensationnuclei parameters on rate of fog dissipation.
Current position: Engineer, Manali

Sanjay Prakash Baxla

2008

A study of ambient ultra fine aerosols using SMPS.

Anirban Roy

2008

Measurement and simulation of particulate aerosols.
Current Position: Ph.D. Student, Carnegi Mellon University, USA

Anilkumar D. Vanga

2007

A numerical study of new particle formation in cirrus cloud.
Current Position: Engineer, Jones LangLaSalle, Mumbai

Sudip Chakraborty

2006

Long term changes in surface and columnar water vapor over North India.
Current Position: Ph.D. Student, The University of Texas at Austin, USA

Abani Patnaik

2006

Climatology of cloud and aerosol over the Indian subcontinent and adjoining oceans.
Current Position: Offshore Structural Engineer, L&T, Mumbai

Roma Srivastava

2006

Study of trace gas concentration over Kanpur region.
Current Position: Lecturer, Hindustan College of Engineering, Agra.
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Parul Sharma

2006

Study of aerosol chemical composition over Kanpur region.
Current Position: Software Engineer, WIPRO, Bangalore,
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tanveer Ahmed

2005

Charging of radioactive aerosols containment wall of pressurized water reactor.
Current Position: Post-Doctoral Fellow, Scripps Institute of Oceanography, San Diego, USA

Nagesh Chinnam

2005

Analysis of ambient particles by high volume sampler and PM10

Shyam Kishor

2005

Investigation into seasonal and diurnal formation of atmospheric nitrate.


Project Employees


Kuldeep Dixit

Current Position: Project Scientist, CAS, IIT Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Jitendra Kumar Meher

Current Position: Kreate Energy (I) Pvt. Ltd., Kreate Global, Vaishali, Ghaziabad, UP
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Dinesh Nath

Current Position:
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Shilpa Shirodkar

Current Position: IIT Kanpur
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Pravin Kumar Verma

Current Position: Mumbai
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vijay Kanawade

Current Position: UGC-Assistant Professor, Centre for Earth and Space Sciences (UCESS), University of Hyderabad, Prof C R Rao Road, Gachibowli, Hyderabad,
Telangana - 500 046
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

M S Gandhi

Current Position: Pennagaram, Dharmapuri, Tamil Nadu
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Mary Michael

Current Position: Trivandrum
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Beena Umrao

Current Position: New Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Bhola N. Singh

Current Position: Branch Manager, SBI, Lucknow
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.R. Ragi

Current Position: Ph.D. Student, Department of CAS, IIT Delhi
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Arindam Ghosh

Current Position: Postdoctoral Fellow, Japan
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tanmay Dhar

Current Position: Research Scholar, Department of Civil Engineering, IIT Bombay
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Litty Thomas

Current Position: Kerala

Desh Deepak

Current Position: Mumbai

Nikita Tripathi

Current Position: Chandigarh

Bodhaditya Santra

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Rishi Jain

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

M. S. Modgil

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Sanjeev Kumar

Current Position: Self-Employed
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Rina Dutta

Current Position: Doctoral Student, IIT Kharagpur (WB)

Manoj K. Sagar

Current Position: Bangalore

Saurav Dayal

Current Position: Research Engineer
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Nimisha Srivastava

Current Position: Research Engineer
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Narayan

Current Position: Doctoral Student, Mississippi State University, USA
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Praveen Pandey

Current Position: Doctoral Student, Katholik University of Leuven, Belgium
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Atul Srivastava

Current Position: Scientist, Indian Institute of Tropical Meteorology, New Delhi
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Subhash Tiwari

Current Position: Self employe Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

Nov 2019 onwards

Adjunct Professor, Centre of Excellence for Research on Clean Air (CERCA), Indian Institute of Technology-Delhi, Delhi, India

August 2018 onwards

Higher Administrative Grade Professor (HAG) Professor, Civil Engineering, Indian Institute of Technology-Kanpur, Kanpur, India

June 2018–May 2021

Head, Department of Civil Engineering, Indian Institute of Technology-Kanpur, Kanpur, India

Dec 2015

Visiting Professor, School of Civil Environmental Engineering, Georgia Institute of Technology, USA.

  • Nov 2014-Oct 2017 Coordinator, Centre for Environmental Science & Engineering, IIT Kanpur

  • Nov 2014 onwards Adjunct Professor, Department of Earth Sciences, IIT Kanpur

  • June-July 2014 Visiting Professor, School of Civil Environmental Engineering,Georgia Institute of Technology, USA.

  • May-July 2012 Professor, Laboratoire de Physique etChimie de Environnement, University of Orleans, France.

  • April 2012-till date Professor, Department of Civil Engineering and Centre for Environmental Science & Engineering, Indian Institute of Technology-Kanpur, Kanpur, India.

  • Aug 2009-July 2010 Senior Fellow, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.

  • Jan 2008-Mar 2012 Associate Professor, Department of Civil Engineering and Centre for Environmental Science & Engineering, Indian Institute of Technology-Kanpur, Kanpur, India.

  • May-July 2006 Visiting Associate Professor, Centre for Climate System Research, The University of Tokyo, Japan.

  • June 2004 Visiting Researcher, NOAA Aeronomy Laboratory, Boulder, USA.

  • July 2003-Dec 2007 Assistant Professor, Department of Civil Engineering, Indian Institute of Technology-Kanpur, Kanpur.

  • Jan 2002-July 2003 Post Doctoral Research Assistant, Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, UK.

  • Dec 2000-Dec 2001 Visiting Scientist, Environmental Assessment Division, Bhabha Atomic Research Centre, Mumbai, India.

  • Fellow, Institute of Advanced Sustainability Studies, Potsdam, Germany, 2021-2022

  • J C Bose National Fellow, awarded by SERB, Department of Science & Technology, 2021-26

  • Arjun Dev Joneja Faculty Chair, IIT-Kanpur, 2021-24

  • Elected Fellow, Indian National Science Academy (2020)

  • UP Ratna Award, Government of Uttar Pradesh (2018)

  • Distinguished Alumnus Award, Banaras Hindu University (2015)

  • Elected Fellow, The National Academy of Sciences, India (2015)

  • Rajeeva and Sangeeta Lahri Chair Professor (2015-2018)

  • Elected Fellow, Indian National Academy of Engineering (2015)

  • Shanti Swarup Bhatnagar Prize in Earth, Atmosphere, Ocean and Planetary Sciences (2014)

  • Sir M. Visvesaraya Research Fellowship for excellence in teaching and Research (2009-2012)

  • NASA Senior Fellowship (2009-2010)

  • NASI-SCOPUS Young Scientist Award for highest citation in Earth Sciences (2009)

  • All India Council of Technical Education, Young Teacher Career Award (2003)

  • Taiwan Aerosol Society award to attend the above conference (2002)

  • Locky award to attend Sixth international aerosol conference in Taiwan (2002)

  • Royal Meteorological Society grant to attend Int. aerosol conference in Taiwan (2002)

  • Aerosol Society Bursary to attend European Aerosol Conference (2000)

  • Lech award in the final year of Ph.D. (2000)

  • FELIX award during Ph.D. (Fee waiver and maintenance allowance) (1996-2000)

Office

FB-314,
Departement of Civil Engineering
IIT Kanpur,
Kanpur 208016

Office Phone: 0512-259-7845 (O)

Email: snt[AT]iitk.ac.in

  • Aerosol Direct Effects, Aerosol Indirect Effects, Laboratory Simulation of Fog, Planetary Atmospheres

 

   
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