G-Rad Measurements
G-Rad's primary interest is in making and understanding observations of the
basic components of the earth's surface radiation budget, upwards and downwards
solar and thermal infrared irradiance, with emphasis on global and regional
climatic implications. Each of the four radiation budget components can be measured
directly, with limited accuracy, with commercially available instruments. G-Rad
makes additional observations of radiation and environmental parameters that
aid in the evaluation and interpretation of the observations. Seven ongoing
long-term observational programs are underway, four dating back more than 20
years, at the globally remote network sites. The quality and quantity of the
observations are evolving as resources and technology allow. The following links
will give further detail on the specific measurements, instrumentation, calibration
procedures, data processing and data retrieval.
- Measured Radiation Quantities
- Instruments
- Solar Calibration
- ARM access to BRW
- Data processing
- Infrared Calibrations
- Meteorology
- All-sky digital images
Station | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
BRW | X | X | X | X | X | X | X | X | X |
Nome | X | ||||||||
St. Paul | X | ||||||||
BAO | X | X | X | X | X | X | X | X | |
BLD | X | X | X | ||||||
BERM | X | X | X | X | X | ||||
MLO | X | X | X | X | X | X | |||
KWAJ | X | X | X | X | X | ||||
SMO | X | X | X | X | |||||
SPO | X | X | X | X | X | X | X |
Measurement types:
1. Downwelling Solar broadband
2. Downwelling Thermal infrared broadband
3. Upwelling solar broadband
4. Upwelling Thermal infrared
5 Direct Solar
6. Diffuse Solar
7. Spectral UV
8. Optical depth
9. Digital all-sky images (daytime only)