AMORE Web Site

AMORE: Atmospheric Modeling Of Radiation Experiment
	Ground Rules for this Study Observations and Instrumentation Modeling Groups and Models Participating Modeling Information Links to Equipment Participating Data

Ground Rules for this Study

The purpose of this exercise is to publish a comparison of modeled and measured clear-sky erythemal irradiances. Are the various models in reasonable agreement with the various measurements? This is a blind study so measurement groups should not compare results before submission, nor should modeling groups. If any measurement or modeling group is found to be "way off" the other groups' results, they will be informed and re-submission is encouraged to be accompanied with an explanation of what went wrong.

Measurement groups should submit their data to the ftp site. Please make your file names and file headers self documenting. The first submission date is July 10th for data taken June 1 through June 30. The second submission date is August 10th for data taken July 1 through July 31. Measurement groups are to submit erythemally weight irradiances for every half hour from 6 a.m until 7 p.m. In addition calibrated spectra should be submitted, along with a brief description of corrections (if any) made for cosine response, stray light, etc.

Modeling groups will be given a list of clear days on July 2 for June and on August 5 for July. To submit your data, go to the ftp site. Again, please make your file names and file headers self documenting. The average measured morning and afternoon aerosol optical depths at 368 nm and 332 nm will be supplied, as will estimated wavelength independent aerosol asymmetry parameter and single scattering albedo, surface pressure and albedo, total column ozone, extraterrestrial solar spectrum, ozone and Rayleigh cross sections and molecular, temperature and ozone profiles and erythemal weighting function. Modeling groups are to submit erythemally weight irradiances for every half hour from 6 a.m until 7 p.m.

Observations and Instrumentation

Aerosols:

Aerosol optical depth observations will be obtained with a microtops handheld sunphotometer, a UVMFRSR belonging to the USDA. Kipp & Zonen has supplied a 7-wavelength POM-1L sky scanner that measures the solar almucanter.

The suite of UV observing instruments that will be participating in the AMORE now consist of the following:

UV Scanning Spectroradiometers:

USDA/SUNY U-1000 spectroradiometer
New Zealand NDSC spectroradiometer
Donald Heath's spectroradiometer
EPA Brewer single monochromator spectroradiometer
Yankee Environmental Systems UVRSS spectrograph

UV Filter Spectroradiometers:

USDA's 18-wavelength filter radiometer (manufactured by Smithsonian)

USDA Yankee Environmental Systems' UVMFRSR

UV Broadband Radiometers:

Kipp & Zonen UV/A and UV/B irradiance sensors	(No Picture Available)
Yankee UVB-1
Solar Light UV Biometer
EKO UVB radiometer	(No Picture Available)

The only other ancillary information, besides aerosols, needed for the RT calculations is total ozone and surface reflectance. Total ozone (M-F) can be provided from Sam Oltman's daily observations and as a co-PI he might possibly be able to supply a few extra ozonesonde profiles on selected days. We will look into the possibility for making some simple broadband surface UV reflectance measurements to learn how closely we can guess it for the RT calculations. It is believed to be small ~ 0.05 or less.

Modeling Groups and Models Participating

Modeling Information

Table Mountain, CO Coordinates
Elevation: 1524 m	Latitude: 40.177^o N	Longitude: 105.276^o W

Date	Total Column Ozone (DU)	Aerosol Optical Depth	Aerosol Single Scattering Albedo	Aerosol Asymmetry Parameter	Surface Albedo	Surface Pressure (mBar)
Jun 5	312	LINK	0.995	0.700	0.05	831.5
Jun 6	295	LINK	0.995	0.700	0.05	833.7
Jul 28	294.4	LINK	0.995	0.700	0.05	836.7
Aug 3	292.0	LINK	0.995	0.700	0.05	837.5

Links to Equipment Participating

Data

Information on how to upload data to the ftp sever and a list of clear days can be found on the data page.