Unformatted text preview: Annual sections or Before Lab: ESCI 1010 Lab 2 Energy and Ter tex 99.5 B EX. K faven Kira ng the Jowing ESCI 1010 Lab 1 Introduction to Weather Data Before Lab: Review pages 1-31 in your Weather and Climate textbook. Pay special attention to the sections entitled "Location and Time on Earth and "Some Weather Basics" (25-28) and the location and Time on Earth supplemental materials distributed Summary: This lab exercise will introduce you to universal time used in meteorology and how to convert that time to the more familiar time zones. You will see universal time used throughout the course. This lab exercise will also take a brief look at the vertical structure of the atmosphere and introduce you to some basics about weather maps. Mic LAB EXERCISE Memphis, TN is located in the Central Time Zone, but as you'll notice looking at weather forecasts, maps and warnings, there is a universal time. known as Greenwich Mean Time (GMT). Coordinated Universal Time (UTC), or Zulu Time (Z) used in meteorology to track weather globally. In Memphis, we also change from Central Standard Time (CST) to Central Daylight Time (CDT) and back during the year, but Universal time is not impacted by this change. Instead, the difference between the local time in Memphis and Z time decreases by one hour as we spring forward in March and increases by one hour as we "fall back in November. Meteorology also uses a 24-hour clock instead of a 12-hour clock. This means that midnight is 0000, 6 a.m. is 0600, noon is 1200, 1 p.m. is 1300, 6:30 p.m. is 1830, and 11:59 p.m. is 2359. Time (UTC), or Standard Times change. Insa forward in Martead of a 12-ho You can use the formulas below to convert between the local time in Memphis and Z time: Daylight Savings Time Time (Memphis, CDT) = Time (Z) - 5 hours Standard Time Time (Memphis, CST) = Time (Z) - 6 hours Time (Z) = Time (Memphis, CDT) + 5 hours Time (Z) = Time (Memphis, CST) + 6 hours 1. Using the Standard Time formulas above, fill in the missing times in the table below. Don't forget that universal time uses a 24-hour clock. Universal Time (Z, 24-Hour Clock) ISIS Memphis Time (CST) os vonios H 9:15 a.m. 1630 womano 10:30am 2:30 p.m. sasa B 2030 000 20230 0430 xil eogam 7.00pm 19-00 10:30 pm 1345 usar 7:45 AMESCI 1010 Lab 2 nergy and Terr Inte Lab: R 2. Using the Daylight Savings Time formulas above, fill in the missing times in the table below. Don't forget that universal time uses a 24-hour clock. Universal Time (Z, 24-Hour Clock) Memphis Time (CDT) 7:15 am la 15:00 Storm 3100pr 4:30 p.m. orutsame 1215 2000 the30 2130 0615 2030 0132 1345 Gritsam lil Sam 8:30 p.m. teos!.45 AM 3. A weather observer in New York City makes a weather observation at 11 a.m. Eastern Standard Time today (Eastern Standard Time is 1 hour ahead of Memphis, see supplemental materials). What is the Z time for that observation? llam EST = TOAM CST 10 Anitahes +40 4. What is the difference between Z time and local standard time on the West Coast of the United States (Pacific Standard Time is 2 hours behind Memphis, see supplemental materials)? Shes As discussed in your textbook on pages 26-27, a station model is a graphical means of conveying measured meteorological information in compact form on a map. Temperature, wind direction, wind speed, atmospheric pressure, dew point, visibility, cloud cover, and present weather are some of the variables in the station model and organized as depicted below: Air Pressure (mb) Temperature ( F) Cloud Cover Overcast 998.2 mb Visibility (miles) 72 982 12 MEM 70 Station ID MEM = Memphis Weather Thunder Wind South @ 15 knots Dew Point ( F)buty encoded in the form of weather symbols: A final element encoded on the basic station model is present weather/precipitation. These are ureb ates a fog 201 Microsoft x NA Study Soup 90 peserter men ble red . 5. There is a surface weather map on the next page. The time of observation (in universal time, Z) is located in the upper-right of the map. Convert this time to Central Daylight Time (Memphis time). K 2207 => msotram 6707pm CDT 17:07 Micros!