![]() The resulting value is the wind term, which will be added to the humidity term and subsequently the sun term as indicated below. The differences are reflective of the higher resolution used in the WeatherLink software.įor temperatures below 50F the wind chill result is used (calculate the wind chill increment using the difference between the air temperature and wind chill) This is based on a best-fit regression of the Steadman 1979 wind table. For later versions of this algorithm: WeatherLink uses 144F as the threshold. ![]() For later versions, there is no upper limit on wind speed.įor temperatures at or above 130F, this term is set equal to zero. With this in mind, the followingcriterion apply with WeatherLink version 5.6 or later:įor temperatures at or above 68F and wind speeds above 40 mph, the wind speed is set to 40 mph. Depending upon your version of firmware or software, this term is determined in part by a lookup table (for temperatures above 50F) and in part by the wind chill calculation, or uses an integrated table that is used both for calculation of this term and for wind chill. This term serves as a base number to which increments of wind and sun are added to come up with the final THSW Index temperature. This term is determined in the same manner as the Heat Index. Only calculates THSW Index when air temperature is at or above 68F. The Vantage Pro calculation is an improvement over the THSW Index in the Health EnviroMonitor because the Health system: The humidity term serves as the base from which increments for sun and wind effects are added. Each term represents one of the three parameters: (Humidity, Sun & Wind). This Index is calculated by adding a series of successive terms. Thus, this index indicates the level of thermal comfort including the effects of all these values. The following describes the series ofįormulas used to determine the THSW or Temperature-Humidity-Sun-Wind Index. In addition, THSW incorporates the heating effects of solar radiation and the cooling effects of wind (like wind chill) on our perception of temperature.įormula: The formula was developed by Steadman (1979). What is it: Like Heat Index, the THSW Index uses humidity and temperature to calculate an apparent temperature. Parameters Used: Temperature, Humidity, Solar Radiation, Wind Speed, Latitude & Longitude, Time and Date I highly recommend this software.Hi all I don't anything about Mac code But do think it would be posable to do a THWS index he is some info There are a few other sites to share with as well. I send my data to various websites such as Weather Underground, CWOP, Weather Bug and Personal weather station. I am a weather "hobbyist" but I feel like a weather pro with this software. When new features are added, any questions I have for the developer are answered promptly. The developer is VERY open to feature requests and was very helpful when I had questions initially. WeatherSnoop 3 allows you to view and access some settings (like archive interval) which are built into the weather station console itself. You can customize graphs of various data plots, giving the program a polished look. The instrument display that displays all the information is intuitive and visually pleasing. It works seamlessly with my Davis USB console which is wirelessly connected to my sensor suite outside. My Davis Vantage Pro 2 station came in a bundle with software from Davis, but it pales in comparison to WeatherSnoop. WeatherSnoop is simply the best weather station interface software out there.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |