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  earth ellipsoid - smallest number of stations
Posted by: RiePa - 2016-03-27, 17:22 - Forum: Website, Maps and Applications - Replies (4)

Hello,
caused by working with "mds" and station numbers given by raw TOA material I wondered about two questions:

1) The network uses GPS to determine the location of a station and to provide them with a precise timestamp.
But in what way is the earth approximated as an ideal spheric?
Could it be that the network uses the WGS-84 ellipsoid like e.g. aviation does?
 
2) Looking for the smallest number of stations required I got the following values:
REGION        NUMBER
Europe        12
America        11
Oceania        7

(Indeed I am quite sure only six or seven stations were needed a couple of years ago concerning Europe.)
In what way did/ does the smallest required number of stations change, concerning the three regions?

best regards
PothThom

and thanks for your time...

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  Proposed station for northern Queensland, Australia
Posted by: nerd65 - 2016-03-27, 04:41 - Forum: General Discussion - No Replies

In common with many others I'm eagerly awaiting the release of the System Blue units.  I'd like to set up a station in northern Queensland, Australia.  I have a fast stable Internet connection and have the technical ability to carry out any construction or installation as required.  Whilst there are stations in southern Australia, northern Queensland is a data void area and a station here should increase the network's sensitivity to flashes in the south west Pacific/Australasian area.

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  definition Europe/ North America
Posted by: RiePa - 2016-03-11, 15:46 - Forum: Website, Maps and Applications - Replies (4)

Hello,
due to the growing number of stations all over the world I wondered how the corner points of "Europe" and "North America" - especially concerning the raw data provided - are defined.
Could it be that the coordinates are given by the maps (-> Real Time Maps --> Europe/ North America)?

best regards
PothThom

and thanks for your time...

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  Looking to add a station in Southeast Houston, TX area
Posted by: impala454 - 2016-03-11, 14:13 - Forum: General Discussion - Replies (6)

Hello, my company (Jacobs) is a contractor for NASA and we're looking to build a station as a small side project.  Is there anyone on the forum from near our area that we can chat with to discuss their experiences so far?

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  Langzeit: Blitzquoten nach Entfernung
Posted by: hans.mayer - 2016-03-09, 21:29 - Forum: Non-English - Replies (8)

hallo alle miteinander,

unter langzeit -> Blitzquoten nach Entfernung sieht man den prozentuellen anteil verteilt ueber die distanz.
leider geht die distanz nur bis 5000 km. ich habe die vermutung dass bei groesseren distanzen auch noch etliche blitze zu finden sind. fuer eine uebersichtliche statistik waere es schoen, wenn das maximum bei 10000 km laege. schließlich ist in meinem fall die max distanz 9336 km

http://www.lightningmaps.org/blitzortung...on_id=1107

gibt es die moeglichkeit den graphen auf seiner x-achse zu vergroessern ? 

schoene gruesse
hans

--



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  Disconnected from websocket
Posted by: DelandeC - 2016-03-05, 17:38 - Forum: Website, Maps and Applications - Replies (4)

Hi folks,

Am I the only one who think this is too sad to be disconnected from the blitzortung websocket when I'm not on the window of blitzortung.  Undecided

It is impossible to have a dual screen with the map on one display and an other thing on the main display.  Sad

Regards

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  accuracy of the network
Posted by: RiePa - 2016-02-23, 19:20 - Forum: Website, Maps and Applications - Replies (5)

Hello,
Dealing with raw data I wondered how accurately the whole system (especially concerning Europe) is working.
When downloading raw data the coordinates are given with an accuracy of five or six decimal places. Calculating worst case scenario (a stroke being detected on the equator) the maximum deviation would be calculated as following:
5 decimal places: +- 55,5 m
6 decimal places: +- 5,5 cm
(The stroke was detected in a circle with +- x metres round the given position.)

I do not think the network is able to calculate positions of strokes with this accuracy, can it?
Secondly I wondered about the deviation parameter "mds" descibed as giving the maximum deviation in nanoseconds. Am I right this value refers to the stroke´s timestamp given at the beginning of each line? But in what way does this affect the position of the stroke?
(Could it be the radius of the circle is calculated by multiplying the deviation "mds" with c = 299 792 458 m/s?)

best regards
PothThom

and thanks for your time...

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  Webseiten Probleme
Posted by: Knychall - 2016-02-15, 20:12 - Forum: Non-English - Replies (5)

Hallo zusammen

seit der Webseitenumstellung habe ich Probleme ...
Menüs gehen nicht mehr bzw. die Unterseiten sind nicht aufrufbar .
Gesetzte Favoriten sind auch nicht mehr verfügbar....
Browser IE 11 mit Windows 7 .
Baut ihr da noch mal was um Huh 

MFG Jens

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  New website : mobile/desktop cookie
Posted by: DelandeC - 2016-02-10, 12:53 - Forum: Website, Maps and Applications - Replies (1)

Hello,

When I surf blitzortung with my tablet, I'm always redirected to the dynamic map and I don't like it Big Grin

It would be nice to have a little cookie which remembers the choice I've made between the mobile or desktop version.

Regards Wink

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  Lightning in 3D.
Posted by: mvdswaluw - 2016-02-05, 07:05 - Forum: Hardware, Software, Lightning Physics - Replies (1)

Just yet I've read a newsletter from The Royal Netherlands Meteorological Institute (KNMI) about 3D lightning analysis.

http://projects.knmi.nl/w3dx/

Happy reading.

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