Weather 
Research & 
Forecasting 
(WRF-Chem) 
Model 
Lokhaze Ali 
PhD Student NUST
The New Norms (Most Likely) 
• US $222 billion during 
2010 alone 
• $16 billion associated 
with Pakistan floods 
2010, 2011 & 2012 
(Chairman NDMA) 
• $80 billion with 2008 
Katrina Hurricane, USA 
• $200-240 billion with 
2011 Japan 
Earthquake
Met Office UK 
BBC 24 September, 2014 
• Four-day forecast as accurate as 
one-day forecast 30 years ago 
• Data crunching 
• Petaflop 
• One thousand million million 
calculations a second 1015 
• Two-and-a-half hours to process 
data 
• 20 different scenarios for a 
forecast (most likely)
World Climate Research Programme 
(WCRP)
Coupled Model Intercomparison 
Project (CMIP5)
Data Collection & Climate Projections 
Mean Air Temp Change CMIP5 RCP4.5 
2011-2100 
Summer Mean Temp JJAS (1979-2005)
Climate of Pakistan (1981-2010)
Pakistan 2050 
+2.50C 
+1.50C 
+1.90C 
Ref: Dr. G Rasul (PMD), 2014
Change in Monsoon Patterns
Recent Disasters in Pakistan (NDMA) 
Cyclones 
Yemyin-2007 
Phat-2010 
Malakand Displacements 
2009 / 10 
Earthquakes 
Ziarat-2008 
Dalbandeen-2010 
Maskhel,Awaran 2013 
Landslides / GLOF 
Attabad-2010, Gyari 2012 
Floods: 2010, 2011, 2012, 
2013, 2014 
Drought 
Tharparker (2014)
Floods 2014
Floods 2014
Floods 2014
Weather Systems Tracks 
2010, 2011 & 2014 
Ref: Dr Hanif (PMD), 2014 15
WRF Models
WRF Model Precipitation
North Atlantic Oscillations (NAO) & 
Indian Ocean Dipole (IOD)
STUDIES OF EMISSIONS AND ATMOSPHERIC 
COMPOSITION, CLOUDS AND CLIMATE 
COUPLING BY REGIONAL SURVEYS (SEAC4RS) 
• Influence of Asian 
emissions on clouds, 
climate, and air quality 
• Asian monsoon 
circulation
FRAPPE - FRONT RANGE AIR POLLUTION AND 
PHOTOCHEMISTRY EXPERIMENT 
• C-130 Aircraft 
• DISCOVER-AQ Mission
The Himalayas
Himalayas Contributions to Basins
Increase in Runoff 
Higher Glacier Melt & Precipitation 
• Avg annual runoff 
generation (TR) 
ref period (1998– 
2007, REF 
• Mean projected 
annual total 
runoff (PTR) for 
the future (2041– 
2050 RCP4.5) 
• PTR is split into 
four contributors 
• BF: baseflow 
• GM: glacier melt 
• SM: snow melt 
• RR: rainfall 
runoff).
Total Flows
SOCIOECONOMIC 
PROCESSES 
Socioeconomic 
Pathways 
Adaptation and 
Mitigation 
Actions 
Governance 
CLIMATE 
Natural 
Variability 
Anthropogenic 
Climate Change 
Vulnerability 
Hazards RISK 
Exposure 
IMPACTS 
EMISSIONS 
and Land-use Change
POLAR REGIONS Risks for Health 
r 
Risk Level with 
Current Adaptation 
Risk-Level 
Very 
Low Med 
Potential for 
Additional 
Adaptation to 
Reduce Risk 
Present 
Near Term (2030-2040 
2°C 
Risk Level with 
High Adaptation 
Very 
High 
4°C 
Long Term 
(2080-2100 
SMALL ISLANDS 
Loss of Livelihoods, 
Settlements, 
Infrastructure, 
Ecosystem Services, 
and Economic 
Stability 
Risks for Low-Lying 
Coastal Areas 
Increased Flood Losses and Impacts EUROPE 
Compounded Stress 
on Water Resources 
Reduced Crop Productivity 
and Livelihood and Food Security 
Vector- and Water- 
Borne Diseases 
AFRICA 
ASIA 
Increased Flood 
Damage to 
Infrastructure , 
Livelihoods, 
and Settlements 
Heat-Related 
Human Mortality 
Increased Drought- 
Related Water and 
Food Shortage 
Increased Losses and 
Impacts from Extreme 
Heat Events 
Increased Water Restrictions 
Significant Change in 
Composition and Structure 
of Coral Reef Systems 
Increased Flood Damage 
to Infrastructure and 
Settlements 
AUSTRALASIA 
Increased Risks 
to Coastal 
Infrastructure 
and Low-Lying 
Ecosystems 
Increased Risks 
from Wildfires 
Heat-Related 
Human Mortality 
Damages from River 
and Coastal Urban Floods 
NORTH AMERICA 
CENTRAL AND SOUTH AMERICA 
Reduced Water 
Availability and 
Increased Flooding and 
Landslides 
Reduced Food 
Production and Quality 
Vector-Borne Diseases 
THE OCEAN 
Reduced Fisheries 
Catch Potential 
at Low Latitudes 
Increased Mass Coral 
Bleaching and Mortality 
Coastal Inundation 
and Habitat Loss 
Unprecedented Challenges, 
Especially from Rate of Change 
Risks for 
Ecosystems 
and Well-Being
Downscaling 
GCM to RCM
Invest Today for The Next Generation 
(Our Tomorrow) 
• Early Warning Systems 
(EWS) 
• Disaster Risk Reduction 
(DRR) 
• Disaster Management 
• Remote Sensing
Technology 2100 
(It was Our power that 
made) the violent 
(unruly) wind flow 
(tamely) for Solomon, to 
his order, to the land 
which We had blessed: 
for We do know all 
things… (Al-Quran)

Weather Research & Forecasting (WRF-Chem) Model

  • 1.
    Weather Research & Forecasting (WRF-Chem) Model Lokhaze Ali PhD Student NUST
  • 3.
    The New Norms(Most Likely) • US $222 billion during 2010 alone • $16 billion associated with Pakistan floods 2010, 2011 & 2012 (Chairman NDMA) • $80 billion with 2008 Katrina Hurricane, USA • $200-240 billion with 2011 Japan Earthquake
  • 4.
    Met Office UK BBC 24 September, 2014 • Four-day forecast as accurate as one-day forecast 30 years ago • Data crunching • Petaflop • One thousand million million calculations a second 1015 • Two-and-a-half hours to process data • 20 different scenarios for a forecast (most likely)
  • 5.
    World Climate ResearchProgramme (WCRP)
  • 6.
  • 7.
    Data Collection &Climate Projections Mean Air Temp Change CMIP5 RCP4.5 2011-2100 Summer Mean Temp JJAS (1979-2005)
  • 8.
  • 9.
    Pakistan 2050 +2.50C +1.50C +1.90C Ref: Dr. G Rasul (PMD), 2014
  • 10.
  • 11.
    Recent Disasters inPakistan (NDMA) Cyclones Yemyin-2007 Phat-2010 Malakand Displacements 2009 / 10 Earthquakes Ziarat-2008 Dalbandeen-2010 Maskhel,Awaran 2013 Landslides / GLOF Attabad-2010, Gyari 2012 Floods: 2010, 2011, 2012, 2013, 2014 Drought Tharparker (2014)
  • 12.
  • 13.
  • 14.
  • 15.
    Weather Systems Tracks 2010, 2011 & 2014 Ref: Dr Hanif (PMD), 2014 15
  • 17.
  • 18.
  • 19.
    North Atlantic Oscillations(NAO) & Indian Ocean Dipole (IOD)
  • 20.
    STUDIES OF EMISSIONSAND ATMOSPHERIC COMPOSITION, CLOUDS AND CLIMATE COUPLING BY REGIONAL SURVEYS (SEAC4RS) • Influence of Asian emissions on clouds, climate, and air quality • Asian monsoon circulation
  • 21.
    FRAPPE - FRONTRANGE AIR POLLUTION AND PHOTOCHEMISTRY EXPERIMENT • C-130 Aircraft • DISCOVER-AQ Mission
  • 22.
  • 23.
  • 24.
    Increase in Runoff Higher Glacier Melt & Precipitation • Avg annual runoff generation (TR) ref period (1998– 2007, REF • Mean projected annual total runoff (PTR) for the future (2041– 2050 RCP4.5) • PTR is split into four contributors • BF: baseflow • GM: glacier melt • SM: snow melt • RR: rainfall runoff).
  • 25.
  • 26.
    SOCIOECONOMIC PROCESSES Socioeconomic Pathways Adaptation and Mitigation Actions Governance CLIMATE Natural Variability Anthropogenic Climate Change Vulnerability Hazards RISK Exposure IMPACTS EMISSIONS and Land-use Change
  • 27.
    POLAR REGIONS Risksfor Health r Risk Level with Current Adaptation Risk-Level Very Low Med Potential for Additional Adaptation to Reduce Risk Present Near Term (2030-2040 2°C Risk Level with High Adaptation Very High 4°C Long Term (2080-2100 SMALL ISLANDS Loss of Livelihoods, Settlements, Infrastructure, Ecosystem Services, and Economic Stability Risks for Low-Lying Coastal Areas Increased Flood Losses and Impacts EUROPE Compounded Stress on Water Resources Reduced Crop Productivity and Livelihood and Food Security Vector- and Water- Borne Diseases AFRICA ASIA Increased Flood Damage to Infrastructure , Livelihoods, and Settlements Heat-Related Human Mortality Increased Drought- Related Water and Food Shortage Increased Losses and Impacts from Extreme Heat Events Increased Water Restrictions Significant Change in Composition and Structure of Coral Reef Systems Increased Flood Damage to Infrastructure and Settlements AUSTRALASIA Increased Risks to Coastal Infrastructure and Low-Lying Ecosystems Increased Risks from Wildfires Heat-Related Human Mortality Damages from River and Coastal Urban Floods NORTH AMERICA CENTRAL AND SOUTH AMERICA Reduced Water Availability and Increased Flooding and Landslides Reduced Food Production and Quality Vector-Borne Diseases THE OCEAN Reduced Fisheries Catch Potential at Low Latitudes Increased Mass Coral Bleaching and Mortality Coastal Inundation and Habitat Loss Unprecedented Challenges, Especially from Rate of Change Risks for Ecosystems and Well-Being
  • 28.
  • 29.
    Invest Today forThe Next Generation (Our Tomorrow) • Early Warning Systems (EWS) • Disaster Risk Reduction (DRR) • Disaster Management • Remote Sensing
  • 30.
    Technology 2100 (Itwas Our power that made) the violent (unruly) wind flow (tamely) for Solomon, to his order, to the land which We had blessed: for We do know all things… (Al-Quran)