topic Area Solar Radiation - time interval in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/area-solar-radiation-time-interval/m-p/186609#M2628 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have calculated the area solar radiation quite often now and used the time configuration 'Multiple days in a year'. During the analysis of my solutions I wondered how the tool calculates the interval.</SPAN><BR /><SPAN>Let's say I chose&nbsp; jan 1st until 31st 2012 with the interval 7 days and 0.5 hours. </SPAN><BR /><SPAN>I have two ideas how the calculation works.</SPAN><BR /><BR /><SPAN>a) it calculates the solar radiation on the 7th, 14th, 21st, 28th jan every 0.5 hours and assumes that the radiation around these days is the same as on the calculated days.</SPAN><BR /><BR /><SPAN>or</SPAN><BR /><BR /><SPAN>b) it calculates the solar radiation from the 1st until the 7th, from the 8th until the 14th, from the 15th until 20th, from the 21st until the 27th and calculates a mean value from these intervals for all the days. </SPAN><BR /><BR /><SPAN>I hope you understand the problem and maybe one of you can help me.</SPAN><BR /><BR /><SPAN>Steffi</SPAN></BODY></HTML> Thu, 25 Apr 2013 14:30:21 GMT StefanieThiele 2013-04-25T14:30:21Z Area Solar Radiation - time interval https://community.esri.com/t5/arcgis-spatial-analyst-questions/area-solar-radiation-time-interval/m-p/186609#M2628 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have calculated the area solar radiation quite often now and used the time configuration 'Multiple days in a year'. During the analysis of my solutions I wondered how the tool calculates the interval.</SPAN><BR /><SPAN>Let's say I chose&nbsp; jan 1st until 31st 2012 with the interval 7 days and 0.5 hours. </SPAN><BR /><SPAN>I have two ideas how the calculation works.</SPAN><BR /><BR /><SPAN>a) it calculates the solar radiation on the 7th, 14th, 21st, 28th jan every 0.5 hours and assumes that the radiation around these days is the same as on the calculated days.</SPAN><BR /><BR /><SPAN>or</SPAN><BR /><BR /><SPAN>b) it calculates the solar radiation from the 1st until the 7th, from the 8th until the 14th, from the 15th until 20th, from the 21st until the 27th and calculates a mean value from these intervals for all the days. </SPAN><BR /><BR /><SPAN>I hope you understand the problem and maybe one of you can help me.</SPAN><BR /><BR /><SPAN>Steffi</SPAN></BODY></HTML> Thu, 25 Apr 2013 14:30:21 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/area-solar-radiation-time-interval/m-p/186609#M2628 StefanieThiele 2013-04-25T14:30:21Z