Ministry of Traffic, Transportation & Urban Planning Climate Change RECCC Pédzi V.J. Girigori MSc Curaçao, June 8th -9th , 2011 Meteorological Department Curaçao Protecting life and property against natural hazards Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Overview 1. What is Global Warming 2. Observations (last 100 years) 3. Climate Variability 4. Expected Impacts Ministry of Traffic, Transportation & Urban Planning Observations Meteorological Department Curaçao Protecting life and property against natural hazards Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Observations Change in: -Temperature -Sea level -Snow coverage Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Observations Curaçao Ministry of Traffic, Transportation & Urban Planning Global Warming Meteorological Department Curaçao Protecting life and property against natural hazards Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Global Warming Greenhouse effect first discovered by Joseph Fourier in 1824, Is the process in which the absorption of infrared radiation by an atmosphere warms a planet. Without these greenhouse gases, the Earth's surface would be up to 30 °C cooler. Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Global Warming: Type of Gasses Nitrogen N2 78.09 % Oxygen O2 20.95% H2O 1% Argon Ar 0.93% Helium He 0.052% Carbon Dioxide CO2 351 ppm Ozone O3 0.5 ppm Methane CH4 1.7 ppm Nitrogen Dioxide N2O 0.32 ppm Water vapor % : 1 part per hundred, ppm: 1 par per million 200 years 280-380 ppm Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Global Warming: Radiative Forcing Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Global Warming Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Global Warming: Source of GW Ministry of Traffic, Transportation & Urban Planning Climate Variability Meteorological Department Curaçao Protecting life and property against natural hazards Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Climate Variability A Dataset can be characterized by a mean and a variance The mean indicates the expected value of a random variable the variance is used as a measure of how far a set of numbers are spread out around the mean Why is the change in climate variability important?? Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Climate Variability: Temperature Maximum (TNx) and minimum (TNn) of daily minimum Temperature Maximum (TXx) and minimum (TXn) of daily maximum Temperature Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Climate Variability: Temperature Change in periods of consecutive lower temperatures (CSD) and periods of consecutive warmer temperatures (WSD) The diurnal temperature range is the difference between the maximum and minimum temperature Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Climate Variability: Precipitation Consecutive wet (CWD) and dry days (CDD) show the change in the rainy and dry periods Changes in extreme precipitation Changes in total precipitation Ministry of Traffic, Transportation & Urban Planning Expected Impacts Meteorological Department Curaçao Protecting life and property against natural hazards Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Expected Impacts: Temperatures Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Expected Impact: Sea Level Rise Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Expected Impacts: Curaçao Temperature Variability Precipitation Variability An extremely likely (>95%) increase in temperature, warm spells and heat waves A more likely than not (>50%) increase of extreme rainfall events An extremely likely (>95%) increase in warmer and more frequent hot days and nights A more likely than not (>50%) increase of the dry season Increase in evaporation due to higher temperatures A very likely (>90%) increase in rainfall intensity Meteorological Department Curaçao Ministry of Traffic, Transportation & Spatial planning Expected Impacts Increase Temperature -Health problems (heat strokes, heat cramps etc.) -SST: Coral bleaching, Harmful Algal Bloom Increase of extreme rainfall events -Land degradation and erosion -Decrease of fresh water (drought) Sea level rise -Salt intrusion, beach erosion, -Coral mortality -Loss of biodiversity -Storm surge Increase of Sahara dust -Health problems Increase Outbreaks of climate-sensitive diseases Food security