Quick TUV-x Calculator

This web page runs the 5.3 version of the TUV-x model. You can run the model for a specified latitude, longitude and time (input option 1), or for a given solar zenith angle (input option 2). In either case, you must also specify the additional parameters in the second column. Also, you may select to print out the photolysis rates and/or the solar actinic flux spectrum at a given altitude above the surface (output option 1), or the erythemal UV and/or solar irradiance at that altitude (output option 2). For any problem, or to send comments, email TUV administrators.

Wavelength
Use predefined grid, or
Enter grid parameters:
Start:End:Increments:
Input Option 1
Latitude (deg):
Longitude (deg):
Date (YYYYMMDD):
Time (hh:mm:ss, UTC):

Input Option 2
Solar Zenith Angle (deg):
Other Input Parameters
Overhead Ozone Column (du):
Surface Albedo (0-1):
Ground Elevation (km asl):
Measurem. Altitude (km asl):

Custom temp/density
Temperature (K):Density (molecule/cm3):

Sunlight
Direct beam:Diffuse down:Diffuse up:
Clouds
Optical Depth: Top:
Single-Scattering Albedo:
Asymmetry Factor: Base:
Aerosols
Column Optical Depth:
   ...at Wavelength (nm):
Single-Scattering Albedo:
Asymmetry Factor:
Alpha:
Output for Atmospheric Science
Actinic Flux, Spectral (quanta s-1 cm-2 nm-1)
Cross Sections
Quantum Yields

Radiation Transfer Model

Pseudo-spherical 2 streams (faster, less accurate)
Pseudo-spherical discrete ordinate 4 streams (slower, more accurate)
 

The wavelength parameters are used to specify the operational range of the TUV Calculator. You can use wavelength start and end to focus on a particular chemical species. Set increments to -156 for an auto-generated wavelength grid. For more detailed information, please read the TUV Instructions.

If your usage of the TUV calculator is high-volume (greater than ~100 requests per day), we suggest that you download the TUV FORTRAN code and build an executable to perform the calculations locally on your own computer.

For video instructions on using the TUV Calculator, you may watch this external video Using the Quick TUV Calculator, created by Pedro J. Aphalo at the University of Helsinki.

820 calculations since 2023-03-24.