STATEMENT OF WORK.pdf

STATEMENT of WORK/SPECIFICATIONS

Objective:

Acquire five handheld sunphotometer systems for use in NASA Maritime Aerosol Network

(MAN).

Background:

Model 540 MICROTOPS II®: Solar Light’s Model 540 Microtops II® Sunphotometer is a light weight, portable 5 channel instrument for measuring aerosol optical thickness (AOD), direct solar irradiance, and water vapor column easily, accurately, and dependably. This multi‐ spectral instrument is designed to measure direct solar irradiance at all selected wavelengths. It then uses this information to provide atmospheric properties, such as aerosol optical thickness and water vapor column. This instrument will be used on ships of opportunity to measure AOD over the open oceans by participating scientists. The data will be contributed to the MAN network database for use in satellite validation of aerosol properties.

Requirements:

This handheld multi‐spectral sun photometer is designed to measure direct solar irradiance at 380nm, 440nm, 675nm, 870nm, and 936nm, store the data for retrieval from a PC. All data are geolocated and time stamped.

1. Lightweight (battery operated)

2. Handheld

3. Store 700 records

4. GPS compatible for data geolocation and time stamps

5. Spectral bands in nm (380, 440, 675, 870 and 936)

6. PC compatible

7. Carrying case, gps, and associated gps cords

Deliverables:

Thirty Days from award date, estimated.

Place of Performance:

All work will be conducted off-site.

Period of Performance:

Four weeks from award date, estimated

Contact Person:

Brent Holben Code 618 Biospheric Sciences Laboratory Ph: 301 614 6658 Email: brent.n.holben@nasa.gov