1.2 Organization of Document

Section 2 provides general information on the instruments used for in-situ measurements of wind speed, wind direction, temperature, temperature difference, humidity, precipitation, pressure, and solar radiation. These variables are considered primary in that they are generally measured directly.

Section 3 provides guidance on siting and exposure of meteorological towers and sensors for the in-situ measurement of the primary meteorological variables. Specific guidance is provided for siting in simple terrain (Section 3.2), complex terrain (Section 3.3), coastal locations (Section 3.4), and urban locations (Section 3.5). The issue of representativeness is addressed in Section 3.1. 

Section 4 provides guidance for recording of meteorological data.

Section 5 provides guidance on system performance.

Section 6 provides guidance for processing of meteorological data.

Section 7 provides guidance on data reporting and archiving.

Section 8 provides guidance on the quality assurance and quality control.

Section 9 provides guidance for the most widely used technologies employed for monitoring upper-air meteorological conditions; these include radiosondes and ground-based remote sensing platforms: sodar (Sound Detection and Ranging), radar (Radio Detection and Ranging), and RASS (Radio Acoustic Sounding System).

References are listed in Section 10.

1. INTRODUCTION
 1.1 Background
 1.2 Organization of Document