Overview

Site Map

Personnel

Organization

History

    Visibility Research

    Image Transmission

Overview of Current Work

Overview

Site Map
Organization
Personnel

History
Visibility

Image Transmission
Overview of Current Work

 

Whole Sky Imagers

Introduction
Day/Night WSI

Overview
Description of System Configuration
and Measurement Method
Components and Specifications
Theory of Operations
Primary Quantities Measured with System
Assessment of System Uncertainties
Frequently Asked Questions
Day/Night WSI Modified for Real-time Processing
The Daylight Visible/NIR WSI
Mini WSI ñ Airborne Visible and NIR Imagers
Earlier Day-Only WSI Versions
Applications Overview

 

Calibration of Sensors

Overview
The Reason for Calibrating the Sensors
Required Instrument Characteristics   
Calibration Theory


Dark Level vs Exposure
Dark Level Repeats
Shutter Calibration
Linearity Calibration
Radiometric Linearity
Precision and Uniformity
Filter Passband Calibration
Absolute Radiance Calibration
Aperture Calibration
Rolloff Calibraiton
Flat Field Calibration

Angular Calibration
Field Calibration Device


Related Research

Atmospheric Beam Transmittance Distribution
Improved Cloud Detection Algorithms
Cloud Free Line of Sight Statistics
New WSI Concepts
Laser Markers for 3D Cloud Height Distribution
Improved Solar/Lunar Occultor

 

Image Gallery

Sky Images from Whole Sky Imagers
Movies
Pictures of the Instruments

 

Publications and References

 

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