ValidWind applications: wind power prospecting, aerosol transport

T. Wilkerson; A. Marchant; T. Apedaile; D. Scholes; J. Simmons; B. Bradford

doi:10.1117/12.868157

26 October 2010 ValidWind applications: wind power prospecting, aerosol transport

T. Wilkerson, A. Marchant, T. Apedaile, D. Scholes, J. Simmons, B. Bradford

Proceedings Volume 7832, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VI; 783207 (2010) https://doi.org/10.1117/12.868157
Event: SPIE Remote Sensing, 2010, Toulouse, France

Abstract

The ValidWind™ system employs an XL200 laser rangefinder to track small, lightweight, helium-filled balloons (0.33 meters, 0.015 kg). We record their trajectories (range resolution 0.5 meters) and automatically produce local wind profiles in real time. Tracking range is enhanced beyond 2 km by applying retro-reflector tape to the balloons. Aerodynamic analysis shows that ValidWind balloon motion is well coupled to the local wind within relaxation times ~ 1 second, due to drag forces at subcritical Reynolds numbers Re < 2×10⁵. Such balloons are Lagrangian sensors; i.e., they move with the wind as opposed to being fixed in space. In a field campaign involving many balloons, slight variations in ground level winds at launch lead to trajectory patterns that we analyze to derive 3D maps of the vertical and horizontal wind profiles downwind of the launch area. Field campaigns are focused on likely sites for wind power generation and on facilities from which airborne particulates are emitted. We describe results of wind measurements in Utah near the cities of Clarkston, Logan, and Ogden. ValidWind is a relatively inexpensive wind sensor that is easily and rapidly transported and deployed at remote sites. It is an ideal instrument for wind prospecting to support early decisions required, for example, in siting meteorology towers. ValidWind provides high-resolution, real time characterization of the average and changing 3D wind fields in which wind power turbines and other remote sensors must operate.

Citation Download Citation

T. Wilkerson, A. Marchant, T. Apedaile, D. Scholes, J. Simmons, and B. Bradford "ValidWind applications: wind power prospecting, aerosol transport", Proc. SPIE 7832, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VI, 783207 (26 October 2010); https://doi.org/10.1117/12.868157

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available