Getting Data from Helgeossa version 0.9

All data can be obtained in Helgeossa format. The following interfaces for data obtaining have already developed and available for everybody and registration is not obligatory.

PHP interface:

Query are send to the server via http request: http://servername.domain/api/tropo.php?vaiable1=var1&vaiable2=var2 where variable(1,2) is variable type.

In current version:

longitude [-180.0 -180.0] , available * [-15 .. 60]

latitude [-90.0-90.0] , available * [30 .. 70]

*due to server capabilities and size of the archive data

Example:

http://helgeossa.cbk.waw.pl/api/tropo.php?longitude=21&latitude=55&time=20140506120001&elevation=[45,90,89,33,55,32,11]

Data outputs format:

“elevation angle” [ degrees ] computed delay=”tropospheric delay” [metres]

#processing

#Tropo delay 

"45.00000" [deg] computed delay= "3.43770" [m] 

"90.00000" [deg] computed delay= "2.43335" [m] 

"89.00000" [deg] computed delay= "2.43372" [m] 

"33.00000" [deg] computed delay= "4.45685" [m] 

"55.00000" [deg] computed delay= "2.96905" [m] 

"32.00000" [deg] computed delay= "4.57975" [m] 

"11.00000" [deg] computed delay= "12.42417" [m] 

The archive data:

Archive data are stored as a Matlab database for fast loading variables from file into workspace, the forecast data are obtained from http://openweathermap.org

Server choses forecast data if selected time is in future, the forecast is cut down only to one hour ahead.

The user has a possibility to visual check the quality of the tropospheric delay maps for preselected elevation angles. http://helgeossa.cbk.waw.pl/helgeossa/dTdelay90.html