Memorias de investigación
Research Publications in journals:
Spatial Estimation of Sub-Hour Global Horizontal Irradiance Based on Official Observations and Remote Sensors
Year:2014
Research Areas
  • Meteorology,
  • Information technology and adata processing
Information
Abstract
This study was motivated by the need to improve densification of Global Horizontal Irradiance (GHI) observations, increasing the number of surface weather stations that observe it, using sensors with a sub-hour periodicity and examining the methods of spatial GHI estimation (by interpolation) with that periodicity in other locations. The aim of the present research project is to analyze the goodness of 15-minute GHI spatial estimations for five methods in the territory of Spain (three geo-statistical interpolation methods, one deterministic method and the HelioSat2 method, which is based on satellite images). The research concludes that, when the work area has adequate station density, the best method for estimating GHI every 15 min is Regression Kriging interpolation using GHI estimated from satellite images as one of the input variables. On the contrary, when station density is low, the best method is estimating GHI directly from satellite images. A comparison between the GHI observed by volunteer stations and the estimation model applied concludes that 67% of the volunteer stations analyzed present values within the margin of error (average of +-2 standard deviations).
International
Si
JCR
Si
Title
Sensors
ISBN
1424-8220
Impact factor JCR
1,953
Impact info
Datos JCR del año 2012
Volume
14
10.3390/s140406758
Journal number
4
From page
6758
To page
6787
Month
SIN MES
Ranking
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Geovisualización, Espacios Singulares y Patrimonio