Forsenda þess að setja upp hjá sér veðurstöð, er að vita hvað er verið að mæla, þ.e. skilgreiningar á skammstöfunum og mæliheitunum sem boðið er upp á í skýinu.
Hér er listi yfir breytur sem túlka má með myndriti á weatherlink.com:
| Inside Temp | ||
| High Inside Temp Low Inside Temp Inside Hum | ||
| High Inside Hum Low Inside Hum Inside Dew Point | ||
| Inside Wet Bulb | ||
| Inside Heat Index | ||
| Inside High Heat Ind.. | ||
| Barometer | ||
| High Bar | ||
| Low Bar | ||
| Absolute Pressure | ||
| Stekkjarhvammur 8 | ||
| Temp | ||
| High Temp | ||
| Low Temp | ||
| Hum | ||
| High Hum | ||
| Low Hum | ||
| Dew Point | ||
| High Dew Point | ||
| Low Dew Point | ||
| Wet Bulb | ||
| Low Dew Point | ||
| Wet Bulb | ||
| High Wet Bulb | ||
| Low Wet Bulb | ||
| Avg Wind Speed | ||
| Prevailing Wind Dir | ||
| Avg Wind Dir | ||
| Wind Run | Wind run is expressed in distance units, usually kilometers or miles. It is calculated by multiplying the average wind speed by the time interval. For example, if the wind blows at a steady 10 mph for 24 hours, the wind run for that day is 240 miles. Daily wind run is frequently calculated from 9 am to 9 am or midnight to midnight to determine the total wind "mileage" of a day. Average Speed Indicator: It is often used to easily calculate the average wind speed for a period. For instance, a daily wind run of 240 km divided by 24 hours indicates an average speed of 10 km/h. Common Uses in Meteorology Evaporation Studies: It is a crucial, high-use parameter for calculating the rate of moisture evaporation from surfaces (such as evaporation pans). Wind Power Assessment: It helps determine the potential energy output for wind turbines at a given location. |
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| High Wind Speed | ||
| High Wind Direction | ||
| Wind Chill |
Purpose: It is a public safety tool designed to help people determine the risk of frostbite (freezing of skin) and hypothermia (dangerously low body temperature). Safety Context: |
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| Low Wind Chill | ||
| Heat Index | ||
| High Heat Index | ||
| Thw Index | Humidity + Wind. It is an "apparent temperature" index used to calculate how the weather actually feels on human skin by combining these three factors. Here is a breakdown of what the THW Index represents: Apparent Temperature: It provides a "feels like" temperature, similar to a heat index in the summer or wind chill in the winter. Role of Wind: While wind usually cools, the THW index accounts for the fact that in extreme heat (typically over 93°F/34°C), high winds can increase evaporation and make the air feel even hotter. Shade-Based: The THW index assumes a shady location, as it does not calculate the additional heating effects of direct sunlight. Usage: It is commonly featured on personal weather stations, such as the Davis Vantage Pro2, to provide a more accurate, all-season "feels like" measurement compared to just a heat index. Differences from Other Indexes: Heat Index: Uses only Temperature + Humidity (assuming calm wind). Wind Chill: Uses only Temperature + Wind (for cold conditions). THSW Index: Stands for Temperature + Humidity + Sun + Wind, which adds solar radiation to the calculation. WBGT (Wet-Bulb Globe Temperature): Used for intense athletic/worker safety, measuring heat stress by combining temperature, humidity, wind, and sunlight.a |
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| High Thw Index | ||
| Low Thw Index | ||
| Rain | ||
| High Rain Rate | ||
| Heating Degree Days | ||
| Cooling Degree Days | ||