investigation of light pollution in the republic of croatiaa0008654/ds2008/andreic_modelling... ·...
TRANSCRIPT
![Page 1: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/1.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 1
Investigation of Light Pollution in
the Republic of Croatia
Željko Andreić1, Doroteja Andreić, Ana Bonaca, Korado Korlević, Petra Korlević, Mirna Kramar
Višnjan Education Center, Istarska 5, 51463 Višnjan, Croatia
1speaker, permanent address: Faculty of Mining, Geology and Petroleum Eng., University of Zagreb, Pierottijeva 6,
10 000 Zagreb, Croatia, E-mail: [email protected]
![Page 2: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/2.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 2
Overview
1. Introduction
2. A short history of our efforts in Croatia
3. LP monitoring methods
4. Modeling
5. Results and conclusions
![Page 3: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/3.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 3
Croatia
![Page 4: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/4.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 4
A short history of our activities
1992: first popular articles about LP
1998: Višnjan obs. starts to discover
new asteroids
2001: LP blocks Visnjan obs.
asteroid program after approx 1350
discoveries
2002-3: first attempts to measure LP
in Istria
2006--: systematic measurements
and modelling
2002.
2003.
![Page 5: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/5.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 5
A short history of our activities 2 (2006-7)
10%
40%30%
20%
fireflies live only here
![Page 6: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/6.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 6
Monitoring methods: Sky quality meter
![Page 7: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/7.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 7
Monitoring methods: all-sky cameras
![Page 8: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/8.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 8
Satellite imaging (Cinzano at al.)
![Page 9: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/9.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 9
Satellite imaging + modelling (Cinzano at al.)
![Page 10: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/10.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 10
Statistical model (M. Walker 1966.-1977.)
Population cenzus + Walker's law:
D N
Ad_Bright=const×N×D-2,5
Ad_Bright??
![Page 11: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/11.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 11
Shadowing correction (Albers et al. 2001)
corr = exp-(h/A)
typically, A = 4000 m
h
A
![Page 12: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/12.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 12
Statistical model versus satelite imaging model
![Page 13: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/13.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 13
LP map of Croatia
![Page 14: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/14.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 14
LP map of
Croatia
![Page 15: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/15.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 15
Results: "top 10" in Croatia
20,520,420,810. Japetić vrh
20,519,520,89. Kanfanar
19,520,420,98. Novigrad podravski
21,020,921,07. rt Kamenjak
21,020,921,06. Savičenta
20,520,921,15. Tičan
20,520,421,14. Japetić kamenolom
21,520,921,33. Vela Luka suburb
21,520,921,32. Korenica
21,521,721,81. Lastovo
Cinzano et al. prediction
model prediction
SQM measurement
location
![Page 16: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/16.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 16
Results: "top 10" in Croatia
1
2
3
4,10
567
8
9
![Page 17: Investigation of Light Pollution in the Republic of Croatiaa0008654/ds2008/Andreic_Modelling... · 2008-09-01 · Vienna 2008: Investigation of Light Pollution in the Republic of](https://reader034.vdocument.in/reader034/viewer/2022050203/5f7081786e7edc724650e73e/html5/thumbnails/17.jpg)
Vienna 2008: Investigation of Light Pollution in the Republic of Croatia 17
Conclusions
1. Walker's model and satelite imaging model are in agreement,
but Walker's model provides better resolution and is easier to
construct.
2. SQM is unusable near open lights, SQM-L is much beter in this
aspect. Measurements in rural areas in agreement with models,
SQM is very simple to use.
3. Places with minimum LP limited to southern Adriatic islands,
Llika and Gorski kotar and a few small spots far from cities in
other areas.