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Table for Question 9. Asheville, NC, 8 AM. Air Atmospheric Parcel Parcel Dew Point Altitude Pressure Temperature Temperature Temperature 500 mb 5500 meters -20° C ** 4500 meters -13° C -- 3500 meters -6° C 2500 meters 1° C 1500 meters 8° C -- 500 meters 10° C 10° C 0° C -- Fill in the 5 missing values for the parcel temperature and parcel dew point temperature in the table above. The parcel temperature where the air pressure is 500 mb at an altitude of 5500 meters (marked by **) is Tparcel in the lifted index calculation, LI = T500 - TParcel: In thi %3D example T500 is the temperature of the air surrounding the parcel (the atmospheric temperature) and is -20° C. Example, if you move the parcel upward from the ground and find that the parcel temperature at the 500 mb level (Tparce) is -30° C, then the lifted index would be LI = T500 - TParcel = -20° C - (-30° C) = +10°. Notice subtraction of a negative number.

Table for Question 9. Asheville, NC, 8 AM. Air Atmospheric Parcel Parcel Dew Point Altitude Pressure Temperature Temperature Temperature 500 mb 5500 meters -20° C ** 4500 meters -13° C -- 3500 meters -6° C 2500 meters 1° C 1500 meters 8° C -- 500 meters 10° C 10° C 0° C -- Fill in the 5 missing values for the parcel temperature and parcel dew point temperature in the table above. The parcel temperature where the air pressure is 500 mb at an altitude of 5500 meters (marked by **) is Tparcel in the lifted index calculation, LI = T500 - TParcel: In thi %3D example T500 is the temperature of the air surrounding the parcel (the atmospheric temperature) and is -20° C. Example, if you move the parcel upward from the ground and find that the parcel temperature at the 500 mb level (Tparce) is -30° C, then the lifted index would be LI = T500 - TParcel = -20° C - (-30° C) = +10°. Notice subtraction of a negative number.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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You need to fill up the table first and answer questions a to d. Thnak you

Table for Question 9. Asheville, NC, 8 AM. Air Atmospheric Parcel Parcel Dew Point Altitude Pressure Temperature Temperature Temperature 500 mb 5500 meters ** -20° C 4500 meters -13° C -- 3500 meters -6° C 2500 meters 1° C 1500 meters 8° C 500 meters 10° C 10° C 0° C Fill in the 5 missing values for the parcel temperature and parcel dew point temperature in the table above. The parcel temperature where the air pressure is 500 mb at an altitude of 5500 meters (marked by **) is Tparcel in the lifted index calculation, LI = T500 - TParcel: In this example T500 is the temperature of the air surrounding the parcel (the atmospheric temperature) and is -20° C. Example, if you move the parcel upward from the ground and find that the parcel temperature at the 500 mb level (Tparcel) is -30° C, then the lifted index would be LI = T500 - Tparcel = -20° C - (-30° C) = +10°. Notice subtraction of a negative %3D number.
Transcribed Image Text:Table for Question 9. Asheville, NC, 8 AM. Air Atmospheric Parcel Parcel Dew Point Altitude Pressure Temperature Temperature Temperature 500 mb 5500 meters ** -20° C 4500 meters -13° C -- 3500 meters -6° C 2500 meters 1° C 1500 meters 8° C 500 meters 10° C 10° C 0° C Fill in the 5 missing values for the parcel temperature and parcel dew point temperature in the table above. The parcel temperature where the air pressure is 500 mb at an altitude of 5500 meters (marked by **) is Tparcel in the lifted index calculation, LI = T500 - TParcel: In this example T500 is the temperature of the air surrounding the parcel (the atmospheric temperature) and is -20° C. Example, if you move the parcel upward from the ground and find that the parcel temperature at the 500 mb level (Tparcel) is -30° C, then the lifted index would be LI = T500 - Tparcel = -20° C - (-30° C) = +10°. Notice subtraction of a negative %3D number.
Meteorologist often use an index called the lifted index to access the stability of the atmosphere. The lifted index (LI) is defined as the difference between the atmospheric temperature where the air pressure is 500 mb (T500) and the temperature of an air parcel that has been lifted from the ground surface up to altitude where the air pressure is 500 mb (TParce). The lifted index was not covered in the reading material. The information you need to answer these questions is provided here. The tables above indicate that the air pressure is 500 mb at an altitude of 5500 meters above sea level. The temperature of the atmospheric air surrounding the air parcels is -20° C as shown in the table. After filling in the table, you will have a value for the air temperature inside the parcel at 5500 meters above sea level. The simple equation for lifted index is shown below. In both tables above, T 500 is -20° C. LI = T500 - TParcel Questions. Please label answers with (a) - (d). (a) Explain why the atmosphere is said to be stable when the lifted index is positive and unstable when the lifted index is negative. Hint. Think about how we determine if the atmosphere is stable or unstable. (b) At what altitude does a cloud start to form in a lifted parcel? (At 8 AM) (c) What is the lifted index? (At 8 AM) (d) Is the atmosphere stable or unstable for parcels lifted up to 500 mb? (At 8AM)
Transcribed Image Text:Meteorologist often use an index called the lifted index to access the stability of the atmosphere. The lifted index (LI) is defined as the difference between the atmospheric temperature where the air pressure is 500 mb (T500) and the temperature of an air parcel that has been lifted from the ground surface up to altitude where the air pressure is 500 mb (TParce). The lifted index was not covered in the reading material. The information you need to answer these questions is provided here. The tables above indicate that the air pressure is 500 mb at an altitude of 5500 meters above sea level. The temperature of the atmospheric air surrounding the air parcels is -20° C as shown in the table. After filling in the table, you will have a value for the air temperature inside the parcel at 5500 meters above sea level. The simple equation for lifted index is shown below. In both tables above, T 500 is -20° C. LI = T500 - TParcel Questions. Please label answers with (a) - (d). (a) Explain why the atmosphere is said to be stable when the lifted index is positive and unstable when the lifted index is negative. Hint. Think about how we determine if the atmosphere is stable or unstable. (b) At what altitude does a cloud start to form in a lifted parcel? (At 8 AM) (c) What is the lifted index? (At 8 AM) (d) Is the atmosphere stable or unstable for parcels lifted up to 500 mb? (At 8AM)
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