• KultureGeek
  • Comparateur de prix
       
iPhoneAddict
 iAddictv5Notre Application iPhone/iPad
  • Accueil Apps
  • Actualité Apple
  • Keynote Apple
  • Firmwares & iTunes
  • Contactez-nous
Accueil » Liste des Apps » Apps Universelles » Economie et entreprise » Clear Sky Calculator
2.0.5 iOS €Gratuit Apogee Instruments 0 0 The Clear Sky Calculator is used to determine the need for recalibration of radiation sensors. It is most accurate when used near solar noon in the summer months. The calculator estimates the intensity of solar radiation (either total global...
Clear Sky Calculator

Clear Sky Calculator

iOS Universel / Economie et entreprise

Gratuit
Obtenir sur l'App Store

The Clear Sky Calculator is used to determine the need for recalibration of radiation sensors. It is most accurate when used near solar noon in the summer months. The calculator estimates the intensity of solar radiation (either total global shortwave radiation, measured by pyranometers, or global photosynthetic photon flux density, measured by quantum sensors) incident on a horizontal surface at any time of the day, at any location in the world. The equations used to estimate clear sky solar radiation with the Clear Sky Calculator come from the clear sky solar radiation model used to calculate net radiation in the ASCE Standardized Reference Evapotranspiration Equation (http://www.kimberly.uidaho.edu/water/asceewri/index.html). The only input requirements to the calculator are site elevation, latitude, longitude, reference longitude, air temperature and relative humidity measurements or estimates. These data are typically easy to obtain, making the Clear Sky Calculator a simple solar radiation reference that can be used to estimate pyranometer and quantum sensor accuracy and determine the need for recalibration.

When used near solar noon over multiple clear, unpolluted days during spring and summer months, accuracy of the Clear Sky Calculator is estimated to be ± 4 % in all climates and locations around the world. As an example, modeled incoming shortwave radiation (SWi) from the Clear Sky Calculator closely tracked measured SWi (data from a heated and ventilated Kipp & Zonen CM21 pyranometer) for a clear day (April 21, 2012) in Logan, Utah. The ratio of measured SWi to modeled SWi was between 1.00 and 1.05 (0 % and 5 %) from 9 AM to 6 PM (solar zenith angles less than 65∞). The average ratio from two hours before solar noon to two hours after solar noon was 1.02 ± 0.01 (2 ± 1 %). (see http://www.apogeeinstruments.com/using-the-clear-sky-calculator/ )

A more detailed discussion of Clear Sky Calculator accuracy is given on the webpage (http://clearskycalculator.com/model_accuracy.htm), where the necessary accuracy of the required inputs is discussed.

Apogee strongly encourages our customers to use the Clear Sky Calculator as an effective way to monitor pyranometer and quantum sensor performance and determine the need for sensor recalibration. If a sensor is consistently different from the Clear Sky Calculator by more than a few percent, please contact us about recalibration.

En voir plus...

Quoi de neuf dans la dernière version ?

Added ePAR option

  • Screenshot #1 pour Clear Sky Calculator
  • Screenshot #2 pour Clear Sky Calculator
  • Screenshot #3 pour Clear Sky Calculator
  • Screenshot #4 pour Clear Sky Calculator

D'autres applications du développeur

Field of View Calculator
Field of View Calculator
/ iOS Universel
Light Unit Converter
Light Unit Converter
/ iOS Universel
Apogee Connect
Apogee Connect
/ iOS Universel
Apogee Connect
Apogee Connect
/ macOS
Apogee InSight
Apogee InSight
/ iOS Universel

Note

(0 note)

Détails sur l'application

Version
2.0.5
Taille
5.9 Mo
Version minimum d'iOS
12.0
Dernière mise à jour
28/09/2021
Publié par
Apogee Instruments

Newsletter App Store

Recevez chaque jour les meilleures promos

Actualité Apple

Image Argylle : le film de Matthew Vaughn est enfin disponible en France sur Apple TV+
Argylle : le film de Matthew Vaughn est enfin disponible en France sur Apple TV+
Image L’Apple Watch reste première pour les ventes de montres connectées
L’Apple Watch reste première pour les ventes de montres connectées
Image Apple donne rendez-vous le 31 juillet pour les résultats trimestriels et les ventes d’iPhone
Apple donne rendez-vous le 31 juillet pour les résultats trimestriels et les ventes d’iPhone
Image Apple a envisagé de concurrencer le cloud d’Amazon (AWS)
Apple a envisagé de concurrencer le cloud d’Amazon (AWS)
Partenaires : Actualité iPhone - Culture Geek
©2009-2025 i2CMedia | A propos |