Moyerscience.weebly.com



What is a climateClimates on EarthWhat is a weather forecastWhat does a weather map showWhat direction do weather systems generally moveTechnologyTypes of satellite mapsWhat is radarWeather data collection Main cloud typesCold front vs. warm frontdefined by average temperature, precipitation, humidity, air pressure, and wind, over time in a particular placetemperate (middle latitude)Summers can be hot but winters are not very coldPolarConsistently cold temperaturesEvery month of the year averages below 10 degrees Celsiustropical Close to equator = hotReceive most sunlightCan be dry or heavy rainDry (arid) Usually get less than 25cm of rain per yearInclude desertsNot all dry zones are hot (Gobi Desert is cold)Continental Wider temperature rangeMuch colder wintersan attempt to make accurate predictions of future weatherThe accuracy of weather prediction is improving as technology advancesLong range is more difficult than short-range weather predictionsprecipitation, wind direction, temperature, cloud cover, high or low pressure, cold and warm fronts, stationary and occluded frontswest to east in USgreatly influenced the ease and accuracy of making weather predictionscomputerWeather data at thousands of locations can be gathered instantaneously and applied to weather prediction to produce weather mapsSatellite weather mapsVisible satellite mapsnapshot of the earth and is only available during the day as it uses light from the sun to detect the cloudsLow clouds are dark and high clouds are lighterInfrared satellite mapallows you to see cloud cover whether it is day or nightmeasure the temperature of cloud tops, which we can translate into cloud coverStrong to severe thunderstorms will normally have very cold topswater vapor satellite mapindicate how much moisture is present in the upper atmosphereuseful for indicating where heavy rain is possibleelectronic instrument, which determines the direction and distance of objects that reflect radio energy back to the radar sitestands for Radio Detection and Rangingwhat meteorologists use to see rain or snowDoppler radarwhat meteorologists use to see rain or snowgives forecasters the capability of providing early detection of severe thunderstorms that may bring strong damaging winds, large hail, heavy rain, and possibly tornadoeswind speedwind directionair temperaturemeasure of the energy of moleculesthe more energy the molecules in air have, the hotter it feelsrelative humiditycompares the actual amount of water vapor in the air with the maximum amount of water vapor the air can hold at that temperature (its capacity)air pressurecirrushigh level clouds and due to high altitude, the water is almost frozen to form ice crystals isolated Cirrus clouds do not indicate any instability in the weather and may not bring rain. if the clouds are dense they often indicate that a storm might be approachingstratuslayered clouds that usually bring a drizzle and there is widespread rain and in some cases ocean aircumulusneutral weather cloudsAll the other clouds are combinations or variations of these typesCold frontleading edge of a cooler air mass of air, replacing at ground level a warmer mass of aircooler, denser air wedges under the less-dense warmer air, lifting itupward motion causes lowered pressure along the cold front and can cause the formation of a narrow line of showers and thunderstorms when enough moisture is presentweather map cold front is marked with the symbol of a blue line of triangles/spike pointing in the direction it is travelingcan move up to twice as fast as warm front and can produce sharper changes in the weatherusually associated with an area of high pressurewarm frontleading edge of a warm air mass that displaces colder air, bringing a temperature increase and heavy rain where the front makes contact with the groundweather map represented by a red solid line with semicircles pointing towards the colder air and in the direction of the movement ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download