Data Products Provided by UVMRP

The USDA UVMRP provides a wide variety of products to the broader scientific community. Although the primary stakeholders of UVMRP are focused on agricultural applications, many users of the data access the products via the web page or by special request for use in human health research, atmospheric science studies, industrial coating testing and analysis, defense contractor work, and for a few proprietary applications.

The data provided by UVMRP may be divided into measurement data and derived products. Many quantities are measured and the values are available on the UVMRP web site within 24 hours (http://uvb.nrel.colostate.edu). This also applies to some of the derived products. Table 8.1 presents a list of quantities categorized as either direct measurements or derived quantities, along with the instrument used to collect the data. Section 8.4 elaborates on the data collection process in general, and the processing applied to arrive at useful quantities. Section 8.5 follows with a discussion of the processing of the derived data products.

Table 8.1 The primary measurements and derived quantities available to users of the USDA UVMRP website. Other related quantities are available upon request

Data Product

Brief Description

Primary or Derived

Instrument Name

UV spectral

300, 305, 311, 317, 325, 332

Primary

YES* Inc. UV-MFRSR

irradiance

and 368 nm wavelengths

UV erythemal

280 nm — 320 nm (erythemally

Primary

YES Inc. UVB-1

irradiance

weighted)

pyranometer

Visible spectral

415, 500, 615, 673, 870, and

Primary

YES Inc. VIS-MFRSR

irradiance

940 nm wavelengths

PAR

400 nm - 700 nm Photosyn-

Primary

LI-COR** Inc. LI-190SA

thetically Active Radiation

Quantum Sensor

Surface reflected

Used to indicate presence of

Primary

LI-COR Inc. LI-210SA

irradiance

snow covered surface

photometer

UVA broadband

320 nm — 400 nm broadband

Primary

Solar Light*** Model

irradiance

irradiance (at only 7 sites)

501A -UV-A radiometer

Ambient air

Standard meteorological values

Primary

Vaisala**** HMP 35A or

temperature and

HMP 45D

relative humidity

Ambient baro-

Standard meteorological values

Primary

Vaisala Inc. Model

metric pressure

(at only 14 sites)

PTB-101 or PTB-110

Aerosol optical

332 nm and 368 nm instan-

Derived from

depth

taneous or daily averaged

MFRSR

Column ozone

Daily value

Derived from

UV-MFRSR

Synthetic

300 nm — 400 nm irradiance at

Derived from

spectrum

1 nm resolution

UV-MFRSR

UV climatology

UV-A, UV-B, Erythemal, Flint,

Derived from

Caldwell, Vitamin D as daily,

synthetic

monthly, and annual sums

spectrum

* Yankee Environmental Systems, Turners Falls, MA ** LI-COR Biosciences, Lincoln, NE *** Solar Light, Glenside, PA **** Vaisala Inc., Vantaa, Finland

* Yankee Environmental Systems, Turners Falls, MA ** LI-COR Biosciences, Lincoln, NE *** Solar Light, Glenside, PA **** Vaisala Inc., Vantaa, Finland

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