ITALIAN METEOR and TLE NETWORK
Vuoi reagire a questo messaggio? Crea un account in pochi click o accedi per continuare.

ITALIAN METEOR and TLE NETWORK

Forum dedicato all'osservazione e lo studio di meteore, bolidi e TLE (Transient Luminous Events).
 
IndiceUltime immaginiCercaRegistratiAccedi

 

 Automatic detection of circular depressions in digital elevation data....

Andare in basso 
AutoreMessaggio
Renzo Cabassi

Renzo Cabassi


Numero di messaggi : 958
Località : Imola (BO)
Data d'iscrizione : 07.01.09

Automatic detection of circular depressions in digital elevation data.... Empty
MessaggioTitolo: Automatic detection of circular depressions in digital elevation data....   Automatic detection of circular depressions in digital elevation data.... Icon_minitimeMar Mar 09, 2010 10:49 am

http://www.geologi.no/data/f/0/09/75/5_22301_0/Krogli_et_al.pdf

Automatic detection of circular depressions in digital elevation data in the search for potential Norwegian impact structures
Svein Olav Krøgli, Henning Dypvik & Bernd Etzelmüller
Krøgli, S.O., Dypvik, H. & Etzelmüller, B.: Automatic detection of circular depressions in digital elevation data in the search for potential Norwegian
impact structures. Norwegian Journal of Geology, Vol. 87, pp. 157-166.Trondheim 2007. ISSN 029-196X.

Presently, 174 impact craters are proven on Earth, and of these 10 are located in Finland, 6 in Sweden and only 2 in Norway (Gardnos and Mjølnir).
A pattern matching algorithm (correlation) based on 100 m digital elevation data was used in a regional study to discover circular depressions in
the search for possible new Norwegian impact structures. By applying this technique to detect depressions of 5 – 10 km diameter in Finnmark,
northern Norway, about 23 large circular structures were found in a 14,000 km2 area of Precambrian rocks. Circular features are clearly displayed in
the detected structures. The large number of candidates in this area, however, makes field inspection inconvenient and time consuming, and supplementary
screening methods should be considered to help reduce the number.
Torna in alto Andare in basso
http://www.ciph-soso.net
 
Automatic detection of circular depressions in digital elevation data....
Torna in alto 
Pagina 1 di 1
 Argomenti simili
-
» Avvistamento bolide in data 23/12/2011
» elenco sciami IAU - meteor data center

Permessi in questa sezione del forum:Non puoi rispondere agli argomenti in questo forum.
ITALIAN METEOR and TLE NETWORK :: METEORITI: documentazione varia-
Vai verso: