Aerosol pollution as result of dust storms
Research of Influence of Aerosol Pollution of an Atmosphere in Result of Dust-Storm on Change of a Climate
Tech Area / Field
- ENV-APC/Air Pollution and Control/Environment
3 Approved without Funding
Physical-Technical Institute, Tajikistan, Dushanbe
- Institute of Atmospheric Physics, Russia, Moscow\nMain Administration on Hydrometeorology and Environmental Monitoring, Tajikistan, Dushanbe
- US Department of Agriculture / Agricultural Research Service / Cropping Systems Research Laboratory, USA, TX, Lubbock\nNASA / Goddard Space Flight Center, USA, MD, Greenbelt\nUniversita di Lecce, Italy, Lecce\nNational Institute for Agro-Environmental Sciences, Japan, Tsukuba\nUniversidade de Evora / Centro de Geofisica, Portugal, Evora\nUniversité des Sciences et Technologies de Lille / Laboratoire d'Optique Atmospherique, France, Lille
Project summaryPROJECT GOALS: control of aerosol atmospheric pollutions formed after dust storms, its influence on climate change and crop productivity and people health. Investigation of carry, transformation and far transport of dust particles concerned with region desertification process. Development of recommendations for decrease of dust storms influence on ecosystem.
One of most significant results obtained in meteorology during last quarter of last century was estimation of man-made pollution of the atmosphere and its influence on climate change.
Analysis of Tajikistan data for last quarter last of last century show the tendency for rising of air temperature. For instance in Kurgan-Tube (426 m above sea level) it comes up to 1.3 C, for Dushanbe (803 m above sea level) – 1.72 C, for Haramkul (2800 m above sea level) – 1.33C, for Fedchenko glacier (4169 m above sea level) comes to 0.73C. In 1997 the increase of annual temperature for +1-+2C was observed everywhere, in 1999 it was 1.2 to 2.1C, in 2000 over 1.5C above average long-term temperature. Those have strong impact on glaciers conditions and water storage of the region.
Climate warming during 50 years can cause global climate disasters. In conditions of Tajikistan arid zone climate warming (and desertification) may cause more often dust storms in the region and neighbor countries of Central Asia.
Intensification of dust carrying-outs and spreading over Central Asia territory may cause following results:
- significant aerosol atmospheric pollution with pernicious influence on living organisms activity because dust particles are sources of flow and carry of different anthropogenic ecologically harmful admixtures (different metals, radiation elements, pesticides, defoliants and decay products;
- decrease of direct solar radiation level during dust storms (about 30-80%);
- significant photosynthesis decrease in plants;
- decline of some agricultural crops maturing period, quantity and quality (and in some cases annihilation of some species). That may cause social and economical disasters in the region.
Project participants for the most part are well qualified specialists in atmospheric physics, ecology, climatology and theory of physics – academicians, doctors of physics and mathematics.
For goals achievement following investigations will be performed^
1. Investigation of formation, transformation, spreading and precipitation properties of aerosols caused by dust storms;
2. Statistical analysis of aerosol atmospheric pollution influence on the climate change.
3. Complex investigation of optical and microphysical, radioactive and chemical properties of dust aerosols, angular characteristics of dusted atmosphere brightness in arid and high-mountain regions as result of dust storms;
4. Statistical analysis of dust storms influence (dust haze) on agricultural crops productivity;
5. Development of recommendations for decrease of aerosol (dust) pollution pernicious influence on regional ecosystem;
6. Organizing, preparation and participation in international meetings, negotiations and expeditions concerned with dust carries influence on climate and ecosystem.
Aerosol pollution (dust haze, dust storms) formed in Tajikistan region are unique natural phenomena and can be considered as natural laboratory for complex investigations of optical, microphysical and chemical characteristics of aerosol particles brought into atmosphere during dust storms. Along with that unique background measurements are possible in Tajikistan in high-mountain region of Pamir, which differs significantly from measurements taken in the world.
The investigation of climate warming influence in arid zone conditions causing enlargement of desert areas because of often dust storms (dust haze) is the project novelty as well.
The following data will be obtained:
- about influence dust storms (dust haze) of different power on climate change and environment;
- about dust storms influence over crops productivity;
1. In S.U.Umarov Physical Technical Institute, Tajikistan Republic Academy of Sciences on the basis of the Atmospheric physics laboratory the complex monitoring system will be created for observing the environment components condition, which impact the climate change and first of all the aerosol pollution after dust storms in arid region of Tajikistan.
2. On basis of investigation of generation, spreading (long distance transport), transformation and precipitation processes investigation a model will be created for description of the processes.
3. Statistical data will be obtained concerning atmospheric meteo-parameters change during dust storms.
4. The analysis of physical and chemical properties of aerosols for understanding their formation and transformation processes is being planned.
5. After complex investigation statistical data about optical, microphysical, chemical and radioactive characteristics of aerosols formed after dust storms of different power and data on arid and high mountainous atmosphere angular brightness characteristics will be obtained.
6. The statistical information about several crop productivity and dynamics of its change in connection with dust storms duration.
7. On basis of results of works performed the definite recommendations will be made for decrease of dust storms influence on environment.
Within the project the permanent Pamir international high-mountain background station will be created.
The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.
ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.