WORLD METEOROLOGICAL ORGANIZATION

UNITED NATIONS ENVIRONMENT PROGRAMME

A.     UV-B

1.   Wavelength resolution - 1.0 nm or better

2.   Temporal resolution - 10 minutes or better

3.   Directional (Angular)


- Separation into direct and diffuse components or better

4.   Meticulous calibration strategy

B.     ANCILLARY DATA - ABSOLUTELY NECESSARY

1.   Total column ozone - (within 100 km)

2.   Aerosol optical depth

3.   Ground albedo

4.   Cloud cover

HIGHLY RECOMMENDED

5.   Aerosol, lidar profile

6.   Vertical ozone distribution

7.   Shortwave irradiance - i.e. global solar radiation

8.   Polarization of zenith radiance

9.   Water vapour