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BHAUTMAGE Utkarsh Prakash
PhD in Environmental Science, Policy and Management - 2020
M.Tech (Master of Technology) in Environmental Engineering, Indian Institute of Technology Guwahati, India B.Tech (Bachelor of Technology) in Civil Engineering, Visvesvaraya National Institute of Technology Nagpur, India
Supervisor:
Prof. FUNG Jimmy Co-Supervisor: Prof. LAU Alexis
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Research Topic |
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Incorporation of the Urban Thermal and Moisture Components into the PX-Land Surface Model (LSM) within the Mesoscale Weather Research and Forecasting (WRF) Model |
Keywords |
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Numerical weather prediction, Planetary boundary layer, Urban meteorology modeling, Asymmetric convective model, Land surface model, Air pollution |
Abstract |
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In the mesoscale Weather Research and Forecasting (WRF) model, few urban modeling options exist such as Urban Canopy Model (UCM), Building Effect Parameterization (BEP), and Building Energy Model (BEM). These models have certain limitations as far as the choice of land surface models (LSM), planetary boundary layer (PBL) schemes, and computational expenses are concerned. The authors Dy et al., (2019) made an attempt to include the urban momentum drag effect for wind speed modeling by developing a new multilayer model with modifications to the non-local Asymmetric Convective Model version 2 (ACM2) PBL scheme. The urban-based ACM2 (UACM) model has shown a significant improvement in wind speed reduction near to the urban ground surface along-with an inflection point in the vertical wind profile at roof level. In this study, urban thermal and moisture components are newly introduced in the PX-LSM combined with the UACM model. The urban street-level surface composition includes the impervious, vegetated, and bare ground fractions. The street and roof surface temperature’s diurnal variation is modelled using the two layer force-restore algorithm. Simple radiation treatment is considered to account shadowing within the streets based on solar zenith angle and building morphology. The heat and moisture fluxes are computed at the street and roof levels together with a simple algorithm for anthropogenic heating. The new UACM model has an advantage of minimal urban morphological parameters requirement, simple formulation, and more efficient execution. The upgraded model is tested with the both idealized and real case WRF simulations over the Pearl River Delta (PRD) region in Southern China. The evaluation demonstrated greatly improved wind and temperature predictions at the urban measurement sites compared to the base ACM2 model. |
Award |
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Award Name |
Year |
Overseas Research Award |
2018 |
Research Travel Grant |
2018 |
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Conference Paper |
Chun Yin DY, Utkarsh Prakash Bhautmage, Mau Fung Wong, Jimmy C. H. Fung, Alexis Lau (2017)
Inclusion of Urban Momentum and Thermal Drag Effect into the ACM2 WRF PBL Scheme to Obtain Wind Profile over the Cities: Sensitivity Study,
The 5th International Symposium on Regional Air Quality Improvement in Rapidly Developed Economic Regions,
Guangzhou, China.
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Utkarsh Prakash Bhautmage, Jimmy C. H. Fung, Alexis Lau (2017)
Evaluation of Mesoscale Numerical Weather Prediction WRF Model's Performance by Analyzing the Kinetic Energy Spectra Behaviour ,
The 5th International Symposium on Regional Air Quality Improvement in Rapidly Developed Economic Regions,
Guangzhou, China.
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Utkarsh Prakash Bhautmage, Chun Yin Dy, Jimmy C. H. Fung, Alexis Lau (2018)
Introduction of the Urban Physics and Morphology into the ACM2 PBL Scheme in the WRF Model to Simulate the Meteorological Conditions over the PRD region in Southern China,
The 10th International Conference on Urban Climate (ICUC10) jointly with the 14th Symposium on the Urban Environment (SUE) of the American Meteorological Society (AMS),
New York City, USA.
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Utkarsh Prakash Bhautmage, Chun Yin Dy, Jimmy Chi-Hung Fung, Jonathan Pleim, Alexis Lau, Adel Hanna (2018)
Simulation of the Meteorological Conditions by Introducing the Urban Physics within the PX-LSM and ACM2-PBL Scheme in the WRF Model over the PRD Region in Southern China,
17th Annual Community Modeling Analysis System (CMAS) Conference,
Chapel Hill, North Carolina, USA.
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Utkarsh Bhautmage*, Jimmy C. H. Fung, Jonathan Pleim, Alexis Lau (2019)
Incorporation of the Urban Morphology and Governing Physics Including the Building Anthropogenic Heat Source in the Mesoscale NWP WRF Model's PX-LSM and ACM2-PBL Scheme and its Simulation over the PRD Region in Southern China,
16th Annual Meeting, Asia Oceania Geosciences Society (AOGS),
Singapore.
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Presentations/Talks |
Title |
Date |
Length |
Type and Location |
Evaluation of Mesoscale Numerical Weather Prediction Model’s Performance by Analyzing Kinetic Energy Spectrum Behavior |
2016-05-09 |
25 min. |
Department Seminar |
Inclusion of the urban physics within the PBL scheme to obtain speedy capture of the PBL structure evolution over the cities |
2017-03-08 |
20 min. |
Department Seminar |
Inclusion of the Urban Momentum and Thermal Drag Effect within the ACM2 PBL Scheme in the WRF Model to Obtain Wind Profile over the Cities |
2017-10-18 |
45 min. |
Department qualifying exam oral defense |
Inclusion of the Urban Momentum and Thermal Drag Effect within the ACM2 PBL Scheme in the WRF Model to Obtain Wind and Temperature Profiles over the Cities |
2018-03-08 |
20 min. |
Department Seminar |
Simulation of the Meteorological Conditions by Introducing the Urban Physics within the PX-LSM and ACM2-PBL Scheme in the WRF Model over the PRD Region in Southern China |
2019-02-28 |
15 min |
Department Seminar |
Incorporation of the Urban Morphology and Governing Physics Including the Building Anthropogenic Heat Source in the Mesoscale NWP WRF Model's PX-LSM and ACM2-PBL Scheme and its Simulation over the PRD Region in Southern China |
2020-03-12 |
10 min. |
Department Seminar |
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Teaching Assistant |
Semester |
Course Code |
Course Title |
Class Size |
2015-16 Spring |
ENVR 6040D |
Corporate Environmental Strategy |
25 |
2016-17 Fall |
ENVR 2030 |
Material and Energy Balance for Environmental Management |
39 |
2018-19 Fall |
EVSM 5240 |
Geographical Information System (GIS) |
40 |
2018-19 Spring |
ENVR 5290 |
Climate Change: Science, Policy and Management |
15 |
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Outbound Activities |
Period |
Country |
Institute/Company |
2018-05-01 to 2018-10-31 |
United States of America |
University of North Carolina at Chapel Hill, NC, USA |
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Extracurricular Activities/Volunteer Work |
Type |
Position Held |
Participation Period |
Name of Organization |
Parallel LES Modeling Workshop, CUHK, Hong Kong |
Participant |
2015-09-21 to 2015-09-25 |
Institute of Meteorology and Climatology, Leibniz Universitat Hannover |
WRF and WRF-Chem Workshop & Tutorial, HKUST Fok Ying Tung Graduate School campus, Nansha, Guangzhou, China |
Participant |
2015-12-07 to 2015-12-10 |
Division of Environment (HKUST), US National Center for Atmospheric Research (NCAR) |
Training Workshop on Aviation Research Demonstration Project (AvRDP), CUHK, Hong Kong |
Participant |
2016-07-20 to 2016-07-22 |
World Weather Research Programme of the World Meteorological Organization (WMO WWRP), Hong Kong Observatory (HKO) |
WMO WWRP 4th International Symposium on Nowcasting and Very-short-range Forecast, CUHK, Hong Kong |
Participant |
2016-07-25 to 2016-07-29 |
World Weather Research Programme of the World Meteorological Organization (WMO WWRP), Hong Kong Observatory (HKO) |
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