Weather balloon Weather balloon A weather or sounding balloon is a balloon (specifically a type of high-altitude balloon) that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde. To obtain wind data, they can be tracked by radar, radio direction finding, or navigation systems (such as the satellite-based Global Positioning System, GPS). Balloons meant to stay at a constant altitude for long periods of time are known as transosondes. Weather balloons that do not carry an instrument pack are used to determine upper-level winds and
Labor Condition Application Access File beyond what is mandated by law, so as not to violate the privacy of employees and the company's other stakeholders. The Labor Condition Application should not be confused with labor certification, a process that people need to go through for most EB visas (employment-based visas) that provide a path to permanent residency. Below are some key differences: The Labor Condition Application has been shaped by some key pieces of legislation. Labor Condition Application The Labor Condition Application (LCA) is an application filed by prospective employers on behalf of workers applying for work authorization for the non-immigrant statuses H-1B,