Naslov
The impacts of solar activity on climate affect, a case study of Cave Velika Peća

Autori
Matić, Natalija ; Kren, Gustav ; Škrlec, Vinko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Abstract book 17th International Karstological School “Classical karst”, Cave climate / - Postojna : Karst Research Institute - ZRC SAZU, 2009

Skup
17th International Karstological School “Classical karst”, Cave climate, EU Marie Curie Conferences and Training Courses, Project SMART-KARST, MSCF-CT-2005-029674

Mjesto i datum
Postojna, Slovenija, 15.06.2009. - 20.06.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Solar system; climate changes; paleoclimate; cave climate; speleological object; Cave Velika Peća

Sažetak
The climate on Earth has changed over time because of cosmic, astrophysical, physical, chemical factors and today because of human activity. Electromagnetic radiation of the Sun, like astrophysical factor, is the main source of thermal energy in the climate system of Earth and it is also subject to changes. According to the Milankovitch mathematical theory of climate, based on the seasonal and latitudinal variations of the Solar radiation of the Earth, changes in Earth’s orbit and orientation cause cyclic changes in climate, respectively in temperatures of air. Temperature oscillations of the air are natural phenomena with lots of paleoclimate research about colder and warmer periods. The United Nations proclaimed 2009 the International Year of Astronomy on an initiative of the International Astronomical Union and the UNESCO. The IYA 2009 celebrates the 400 years of astronomical use of the telescope made by Galileo Galilei. Also, 2009 is the year of climate change. By researching changes in the Solar system and activity it is possible to understand the climate changes. This paper presents the impacts of Solar activity on the climate effect. Historical evidence for all climate changes like droughts and floods are found in many different proxies, including cave deposits (speleothems). Speleothems have been a part of caves for millions of years and they are very sensitive to changes in climate. They provide unique and valuable information about the past, like indications of paleomagnetics and paleoclimate conditions. Stalactites record climate changes in their growth rings. These rings determine the temperature of water and season. Changes in growth rings can result with changes in the interaction of the Solar wind with the Earth’s magnetosphere because sunspots have a 22-year magnetic field cycle (magnetic field of sunspots reverses after each 11-year max/min cycle). By determining climate trends in the past, it will be able to predict future climate trends and weather patterns. The Cave Velika Peća is a natural speleological object which is an important archeological site too. The background of mountain Biokovo has a mark of Mediterranean climate and the cave has a typical cave climate. Climate changes have an impact on cyclic changes colder glacial and warmer interglacial events which caused cave microclimate conditions and its forms. In the time of interglacial periods there were formed stalactites and it was the time of sediments accumulation. This cave contains valuable data that are relevant to global climate changes (evidence of the past glacial and interglacial events) and the cave is a depot of information on natural resources, human history and evolution.

Izvorni jezik
Engleski

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