Read and download NCERT Class 11 Geography Weather Instruments Maps and Charts in NCERT book for Class 11 Geography. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Geography textbook for Class 11 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 11 Geography to understand the answers of the exercise questions given at the end of this chapter
NCERT Book for Class 11 Geography Practical Work in Geography Chapter 8 Weather Instruments, Maps and Charts
Class 11 Geography students should refer to the following NCERT Book Practical Work in Geography Chapter 8 Weather Instruments, Maps and Charts in Class 11. This NCERT Book for Class 11 Geography will be very useful for exams and help you to score good marks
Practical Work in Geography Chapter 8 Weather Instruments, Maps and Charts NCERT Book Class 11
Weather Instruments, Maps and Charts
WEATHER OBSERVATIONS Globally, meteorological observations are recorded at three levels, viz. surface observatories, upper air observatories and space-based observation platforms. The World Meteorological Organization (WMO), a specialised agency of the United Nations, coordinates these observations.
SURFACE OBSERVATORIES
A typical surface observatory has instruments for measuring and recording weather elements like temperature (maximum and minimum), air pressure, humidity, clouds, wind and rainfall. Specialised observatories also record elements like radiation, ozone atmospheric trace gases, pollution and atmospheric electricity. These observations are taken all over the globe at fixed times of the day as decided by the WMO and the use of instruments are made conforming to international standards, thus making observations globally compatible. In India, meteorological observations are normally classified into five categories depending upon their instruments and the number of daily observations taken. The highest category is Class-I. Typical instrumental facility available in a Class-I observatory consists of the following:
1 Maximum and minimum thermometers
2 Anemometer and wind vane
3 Dry and Wet bulb thermometer
4 Rain gauge
5 Barometer
EXERCISES
1. Choose the right answer from the four alternatives given below. Which department prepares the weather map of India for each day?
(a) The World Meteorological Organisation
(b) The Indian Meteorological Department
(c) The Survey of India
(d) None of these
2.Which two liquids are used in maximum and minimum thermometers?
(a) Mercury and water
(b) Water and alcohol
(c) Mercury and alcohol
(d) None of these
3.Lines connecting the places of equal pressure are called
(a) Isobars
(b) Isohyets
(c) Isotherms
(d) Isohels
4.The primary tool for weather forecasting is
(a) Thermometer
(b) Barometer
(c) Maps
(d) Weather charts
5.If there is more humidity in the air, the difference between the readings of a dry bulb and a wet bulb will be
(a) Less
(b) More
(c) Equal
(d) None of these
2. Answer the following questions in about 30 words.
(i)What are the basic elements of weather?
(ii)What is a weather chart?
(iii)Which instruments are normally available in Class-I observatory to measure the weather phenomena?
(iv)What are Isotherms?
(v) Which meteorological symbols are used to mark the following on a weather map?
a) Rain
b) Mist
c) Sunshine
d) Lightning
e) Overcast Sky
3. Answer the following question in not more than 125 words.
(i)Discuss how weather maps and charts are prepared and how they are useful to us.
MAP READING
Study the Figures 8.12 and 8.13 and answer the following questions.
(a) Which seasons are shown in these maps?
(b) What is the value of the highest isobar in Figure 8.12 and through which part of the country does it pass?
(c) What are the values of the highest and the lowest isobars in Figure 8.13 and where are they located?
(d) What are the patterns of temperature distribution in both the maps?
(e) In which parts do you see the highest and the lowest mean temperature in Figure 8.12?
(f) What relationship do you see between the distribution of temperature and pressure in both the maps?
Please refer to attached file for NCERT Class 11 Geography Weather Instruments, Maps and Charts
| NCERT Class 11 Geography Geography As A Discipline |
| NCERT Class 11 Geography The Origin And Evolution Of The Earth |
| NCERT Class 11 Geography Interior Of The Earth |
| NCERT Class 11 Geography Distribution of Oceans and Continents |
| NCERT Class 11 Geography Minerals And Rocks |
| NCERT Class 11 Geography Geomorphic Processes |
| NCERT Class 11 Geography Landforms And Their Evolution |
| NCERT Class 11 Geography Composition And Structure Of Atmosphere |
| NCERT Class 11 Geography Solar Radiation Heat Balance and Temperature |
| NCERT Class 11 Geography Atmosphoric Circulation And Weather System |
| NCERT Class 11 Geography Water In The Atmosphere |
| NCERT Class 11 Geography World Climate and Climate Change |
| NCERT Class 11 Geography World Climate And Climate Change Questions |
| NCERT Class 11 Geography Water Oceans |
| NCERT Class 11 Geography Movements Of Ocean Water |
| NCERT Class 11 Geography Life On The Earth |
| NCERT Class 11 Geography BioDiversity And Conservation |
| NCERT Class 11 Geography Glossary |
| NCERT Class 11 Geography India Location |
| NCERT Class 11 Geography Structure And Physiography |
| NCERT Class 11 Geography Drainage System |
| NCERT Class 11 Geography Climate |
| NCERT Class 11 Geography Natural Vegetation |
| NCERT Class 11 Geography Soils |
| NCERT Class 11 Geography Natural Hazards And Disasters |
| NCERT Class 11 Geography Appendix Glossary |
| NCERT Class 11 Geography Introduction to Maps |
| NCERT Class 11 Geography Map Scale |
| NCERT Class 11 Geography Latitude Longitude and Time |
| NCERT Class 11 Geography Map Projections |
| NCERT Class 11 Geography Topographical Maps |
| NCERT Class 11 Geography Introduction To Aerial Photographs |
| NCERT Class 11 Geography Introduction To Remote Sensing |
| NCERT Class 11 Geography Weather Instruments Maps and Charts |
Geography NCERT Book Class 11 Practical Work in Geography Chapter 8 Weather Instruments, Maps and Charts
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Class 11 Practical Work in Geography Chapter 8 Weather Instruments, Maps and Charts NCERT Book Geography
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