1. This project has been funded with support from the European Commission. IES José Saramago Majadahonda, Spain Menntaskólinn í Kópavogi Kópavogur, Iceland

2. PROJECT ESEMES EDUCATIONAL SOFTWARE AND E-LEARNING IN MATHS FOR EUROPEAN STUDENTS (ESEMES) Comenius project 2013-2015 IES José Saramago This project has been funded with support from the European Commission.

3. OUR FINAL PROJECT GEOGEBRA software as a tool for sounding balloon data analysis and outline of Lower atmosphere structure in Majadahonda (Spain) and Kopavogur (Iceland). (SPAICE) This project has been funded with support from the European Commission.

4. OUR FINAL PROJECT Duration: September 2014-April 2015. Participating schools and agencies involved:  Menntaskólinn í Kopavogi (Kópavogur, Iceland).  IES José Saramago (Majadahonda, Spain).  Agencia Estatal de Meteorología (Madrid, Spain) This project has been funded with support from the European Commission.

5. AIMS To develop a collaboration between our two schools with both Icelandic and Spanish National Meteorological Services and other institutions. Use of GEOGEBRA Math Software and other auxiliary software tools (EXCEL) to store, plot and interpret mathematical data obtained from natural phenomena. To acquire a basic comprehension of the structure and composition of the Lower Atmosphere. To analyze and represent sounding balloon data provided by different meteorological stations placed throughout Europe. This project has been funded with support from the European Commission.

6. AIMS To design, assemble, launch and recovery our own stratospheric sounding balloon device. To compare atmospheric features in different cities at different latitudes. To produce a basic sketch on variations in this features depending on the latitude. To use data from standardized official balloon launches and from our own balloon, so to be able to compare them with theoretical models on the structure of Lower Atmosphere (Troposphere-Stratosphere). This project has been funded with support from the European Commission.

8. Work in Iceland Data recompilation University of Wyoming Weather.uwyo.edu/upperair This project has been funded with support from the European Commission.

9. Work in Iceland Creating the graphs using Geogebra This project has been funded with support from the European Commission.

10. Work in Iceland This project has been funded with support from the European Commission.

11. Work in Iceland This project has been funded with support from the European Commission.

12. Work in Spain Our sounding ballon This project has been funded with support from the European Commission.

13. Work in Spain Our sounding ballon This project has been funded with support from the European Commission.

14. Work in Spain Our sounding balloon This project has been funded with support from the European Commission.

15. Work in Spain Winning construction team This project has been funded with support from the European Commission.

16. Work in Spain Launching the ballon This project has been funded with support from the European Commission.

17. Work in Spain This project has been funded with support from the European Commission.

18. Work in Spain Amazing sights This project has been funded with support from the European Commission.

19. Work in Spain Expectations VS Reality This project has been funded with support from the European Commission.

20. Work in Spain Landing This project has been funded with support from the European Commission.

21. Work in Spain This project has been funded with support from the European Commission.

23. STATIONS This project has been funded with support from the European Commission.

24. ATMOSPHERE STRUCTURE This project has been funded with support from the European Commission.

25. GRAPH TYPES Pressure-Height Relative humidity-Height Temperature-Height This project has been funded with support from the European Commission.

26. Theorical introduction Pressure decreases exponentially with altitude in the lower layers of the atmosphere, during first 25-30 km of altitude. This project has been funded with support from the European Commission.

27. Pressure-Height graphics This graph shows how the pressure varies in the lower layer of the atmosphere. This project has been funded with support from the European Commission.

28. Pressure-Height graphics In this one we can see the pressure becoming asimptotic as we reach higher levels of the atmosphere. This project has been funded with support from the European Commission.

29. The mass of the atmosphere is mostly concentrated in the first 20 km of atmosphere, and this 20 first km is called troposphere, which contains 75% of the mass, including humidity and particles in form of dust. THEORETICAL MODEL This project has been funded with support from the European Commission.

30. Relative humidity-Height graphics As we can see there are no clouds once we reach higher levels (20km Aprox.) This project has been funded with support from the European Commission.

31. Relative humidity-Height graphics In this graph we can appreciate the different types of clouds which can be found in different heights in the troposphere. This project has been funded with support from the European Commission.

32. Temperature: continuous decrease of temperature with increasing altitude in the lower layers of the atmosphere (troposphere), usually below 12-16000m. This project has been funded with support from the European Commission.

33. Temperature-Height In the temperature graph we can locate the tropopause, shown by the phenomena of the termal inversion, happening around 14-16 km high. This project has been funded with support from the European Commission.

34. Temperature-Height Another example of the termal inversion. This project has been funded with support from the European Commission.

35. Graphics obtained from our balloon Temperature-Height The temperature decreases as we go higher, reaching a temperature of around - 50ºC. This project has been funded with support from the European Commission.

36. Graphics obtained from our balloon Relative humidity-Height The weather events take place in this 20 first km due to the weight of the water and the pressure, since water is too heavy for the pressure at that height. This project has been funded with support from the European Commission.

37. The graphics from our balloon match with the theoretical models as well as the ones obtained from the Wyoming wheather webpage. The graphics obtained help us to understand better the data and to obtain general conclusions. This project has been funded with support from the European Commission.

38. CONCLUSIONS Pressure decreases with height. The air particles are concentrated in the lower layer of the atmosphere, due to the gravity force  lower atmosphere layers have a higher density than higher ones. Temperature starts to decrease with height, when the balloon reached 9441.7 m (-49⁰C), thermal inversion occurs. This marks the border between troposphere and stratosphere (Tropopause). Relative humidity tends to decrease with height. Water is really heavy, that’s why it stays on the lower layers of the atmosphere. This project has been funded with support from the European Commission.

39. CONCLUSIONS Relative humidity tends to decrease with height. Water is really heavy, that’s why it stays on the lower layers of the atmosphere. Although we may find clouds in upper layers due to warm fronts. This project has been funded with support from the European Commission.

40. CONCLUSIONS This project has been funded with support from the European Commission.