Acknowledgments
Introduction
Part �� The Measurements and Data Analysis Conducted in this Work
Chapter 1 The Experimental Work
Chapter 2 UV Measurements with NILU-UV Irradiance Meters
Chapter 3 Data Analysis and Instrumentation

Part �� Background Physics of Solar Ultraviolet
Radiation and Ozone
Chapter 4 Solar Ultraviolet Radiation
Chapter 5 Photochemical Description of Solar UV Attenuation in the Earth's
Atmosphere
Chapter 6 Science of Ozone Depletion

Part �� Radiative Transfer Equation for Model Calculations
Chapter 7 Model Calculation Method for Surface UV Irradiance

Part �� Papers
Paper 1 UV Measurements in the 3000 -5000 m Altitude Region in Tibet
Paper 2 The Vitamin D Status among Tibetans
Paper 3 Ground-based Measurements and Modeling of Solar UV-B Radiation
in Lhasa�� Tibet
Paper 4 Solar UV Irradiance Measurements at Four Sites in Tibet
Paper 5 Spatial Distribution and Temporal Variation of Solar UV Radiation
over the Tibetan Plateau
Paper 6 Solar UV Radiation Measurements across the Tibetan Plateau
Paper 7 Comparison of Ground-based Measurements of Solar UV Radiation
at Four Sites on the Tibetan Plateau
Paper 8 Impact of Particulate and Dissolved Material on Light Absorption
Properties in a High-altitude Lake in Tibet�� China
Paper 9 Human Vitamin D Deficiency in Tibet
Paper 10 The Observational Study of Erythemal UV Radiation on the Land
Surface of Tibet