Accession Number : AD0619355

Title :   A MICROCLIMATE SAMPLING SYSTEM FOR FIELD PLOT AND ECOLOGICAL RESEARCH,

Corporate Author : NEBRASKA UNIV LINCOLN DEPT OF HORTICULTURE AND FORESTRY

Personal Author(s) : Rosenberg,Norman J. ; Allington,Robert W.

Report Date : 1964

Pagination or Media Count : 7

Abstract : A microclimate sampling system capable of recording the output of air, soil and dew point temperature, soil thermal flux, solar and net radiation, and wind velocity sensors was built at the Nebraska Agricultural Experiment Station. A multipoint self-balancing potentiometer monitors and records the output of the sensors in a prearranged sequence. Junction boxes and cabling arrangements are flexible enough to permit a wide choice in disposition and selection of sensors. The system functioned in the field during a 50-day period without interruption. Data obtained with the system illustrate the nature and magnitude of immediate climatic changes induced by the installation of a wind barrier in a field of growing dry beans. Comparisons of air and dew point temperatures measured on the site and at Weather Bureau installation 150 ft and 8 miles distant reveal great differences between the field and Weather Bureau observations and further illustrate the magnitude of error possible when basic temperature and humidity measurements from a remote location are used to derive secondary climatic parameters for a field plot or study area. (Author)

Descriptors :   (*CLIMATE, SAMPLERS), (*MICROMETEOROLOGY, SAMPLERS), ECOLOGY, METEOROLOGICAL INSTRUMENTS, POTENTIOMETERS, JUNCTION BOXES, ELECTRIC CABLES, TEMPERATURE, DEW POINT, SOILS, AIR, SOLAR RADIATION, WIND, RADIOMETERS, ANEMOMETERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE