Absolute Humidity Parcel Size 2M cubed/Water Content 10g/Absolute Humidity 5g/m cubed. Parcel Size 1M cubed/Water Content 10g/Absolute Humidity 10g/m cubed.

Slides:

Advertisements

Similar presentations

Advertisements

Chapter 5 Atmospheric Moisture. The process whereby molecules break free of liquid water is known as evaporation. The opposite process is condensation,

Atmospheric Humidity. Global water cycle: precipitation = evaporation.

Water in the Atmosphere. Humidity Humidity is a measure of the amount of water vapor in the air. Air’s ability to hold water vapor depends on its temperature.

Section 04 Thermodynamics Adiabatic Processes Lesson 10/11.

After completing this Lesson, you will be able to answer: 1. What is humidity? 2. What is relative humidity? 3. How relative humidity is measured? 4. What.

Moisture Relationships Troposphere Tropopause barrier!

Weather Water in the Atmosphere May 14, Precipitation Precipitation is any form of water that falls from a cloud. Water vapor is the source of all.

Lecture 7 Water Vapor.

Humidity Clouds, fogs, precipitation. The percentages don’t add up! Water vapor is considered an add-on and can be as much as 4%. That’s called absolute.

MET 61 1 MET 61 Introduction to Meteorology MET 61 Introduction to Meteorology - Lecture 4 “Heat in the atmosphere” Dr. Eugene Cordero San Jose State University.

Humidity, Saturation, and Stability

Understanding Weather Water in the Air Ch. 2 Sec. 1 p

Moist adiabatic processes on a thermodynamic chart. Atms Sc 4310 / 7310 Lab 3 Anthony R. Lupo.

HUMIDITY Chapter 17 Test 4 material. ASSIGNMENT – 10 POINTS WRITE A 1 TO 2 PAGE REPORT ON “THE IMPACT OF THE TRI-STATE TORNADO IN ILLINOIS” DUE IN ONE.

HUMIDITY. ABSOLUTE HUMIDITY: Absolute humidity (expressed as grams of water vapor per cubic meter volume of air) is a measure of the actual amount of.

Moisture and Atmospheric Stability

 As water evaporates from lakes, ocean and plants it becomes water vapor, or moisture in the air  Humidity is the amount of water vapor in the air Measured.

Humidity. Water Vapor Can make up as little as 1/10 th of 1% to 4% of the atmosphere. Scientists agree that it is the most important atmospheric gas when.

Atmospheric Moisture: Relative Humidity and Dew Point

Intro Objective 02/28/2012 Tell how dew point and humidity indicate the amount of water in the atmosphere. Benjamin Franklin posed this question for his.

Water in the Atmosphere Water vapor in the air Saturation and nucleation of droplets Moist Adiabatic Lapse Rate Conditional Instability Cloud formation.

Air Pressure. State Variables Describe the “state” of the gas “Variable” means they can change Physicists use P, V, T, N and constant k Chemists use P,

Chapter 4. Circulation of Water in the Atmosphere  A general definition of humidity is the amount of water vapor in the air.  Remember, humidity is.

Atmospheric Moisture. What is Atmospheric Moisture Changing forms of water Changing forms of water Energy absorbed and lostEnergy absorbed and lost Latent.

Lab 5: Atmospheric Moisture.

+ Atmospheric Moisture Chapter 4. + Learning Targets LT #1: I can describe the movement of water through the hydrologic cycle. LT #2: I can summarize.

Chapter 11 Section 2 State of Atmosphere. Temperature vs. Heat Temperature: measures the movement of molecules  Faster = Warmer  Slower = Colder  Measured.

Moisture Variables on Skew T Log P Diagram AOS 330 LAB 8.

Humidity Specific Humidity = The actual amount of water vapor in the air at a given time and place. Relative Humidity = How near the air is to its maximum.

Saturation = filled to capacity

What is Fog? Fog is essentially a dense cloud of water droplets, or cloud, that is close to the ground. Fog forms when warm, moist air travels over a cold.

Lab 6: Saturation & Atmospheric Stability

Relative Humidity. Humidity  the measure of the amount of water in the air  high humidity =lots of moisture in the air.

HUMIDITY  Humidity is the amount of water vapor in the air. Water vapor is the gas phase of water and is invisible. Humidity indicates the likelihood.

Atmospheric Moisture. State Changes of Water Humidity Adiabatic Cooling What Makes Air Rise? Atmospheric Stability.

Concept of Humidity What is the relationship between water vapor holding and temperature? Air hold more water vapour at higher temperature.

By: Group 1 By: Group 1. At daytime, sunlight warms the Earth. Through conduction, air near the ground warms up.conduction conduction between the air.

HUMIDITY BAD HAIR DAY. WHAT IS HUMIDITY? THE WATER VAPOR IN THE AIR (INVISIBLE)

Three Factors of Weather

Atmospheric Moisture. How does the moisture get in the atmosphere?? EVAPORATION – liquid to a gas TRANSPIRATION – process of water being taken in and.

Humidity The amount of water vapor in the air.. Expressed two ways Relative Humidity Dew Point.

Atmospheric Moisture. Water in the Atmosphere Water vapor is the source of all condensation and precipitation Essentially all water on Earth is conserved.

Dew Point and Relative Humidity. What is Humidity? Humidity- the amount of water vapor (WV) in the air Relative Humidity- the % of WV in the air compared.

Chapter 4. Circulation of Water in the Atmosphere  A general definition of humidity is the amount of water vapor in the air.  Remember, humidity is.

Essential Question: How does WATER in the atmosphere affect weather and climate? What is the most important gas in the atmosphere for weather? What is.

 Heat Energy & Water:  Sublimation: process by which a solid changes directly into a vapor (gas).  When air is dry & temp below freezing, ice and snow.

Moisture  There are several methods of expressing the moisture content (water in vapor form) of a volume of air.  Vapor Pressure: The partial pressure.

Water  Most abundant  71% of surface  Hydrologic cycle.

I. Water’s Changes of State 18.1 Water in the Atmosphere  A) Precipitation is any form of water that falls from a cloud.  1) When studying the ATM, H20.

Atmospheric Humidity.

Miscellaneous Measurements

It’s not the heat, it’s the humidity.

Humidity The absolute humidity is the mass of the water vapor in a given volume of air or gas. It’s unit of measurement is grams per cubic meter.

Humidity Bad hair day.

Aim: What is relative humidity?

Atmospheric Moisture Earth Science.

Atmospheric Humidity.

23-1 Atmospheric moisture.

Moisture and Clouds Current Weather Humidity Clouds

March 13, 2012 Get out your homework to be checked for completion

About 71% of the Surface of the Earth Is Covered with Water.

FIGURE 4.4 The water vapor content (humidity) inside this air parcel can be expressed in a number of ways. Fig. 4-4, p.80.

Atmospheric Moisture: Relative Humidity and Dew Point

Water in the Atmosphere

Moisture in the Atmosphere

Atmospheric Moisture Earth Science.

BME680 HUMIDITY SENSOR EDDIE SHEA RUCHEN TANG SEAN SWALVE.

Atmospheric Moisture and Stability

Chapter 12 Section 2 What is humidity?

Presentation transcript:

Absolute Humidity Parcel Size 2M cubed/Water Content 10g/Absolute Humidity 5g/m cubed. Parcel Size 1M cubed/Water Content 10g/Absolute Humidity 10g/m cubed. Absolute Humidity Formula Absolute Humidity= mass of water vapor/volume of air Specific Humidity Formula Specific Humidity= mass of water vapor/total mass of air Mixing Ratio Mixing Ratio= mass of water vapor/mass of dry air

Water Vapor 32F can hold about 2g/cubic meter 50F can hold about 9g/ cubic meter 75F can hold about 23g/ cubic meter Average Specific Humidity by latitude 60N 5g/kg 30N 11g/kg Equator 18g/kg

Saturation Vapor Pressure 14F =2mb(vapor pressure 32F=5mb(vapor pressure 50F=12mb(vapor pressure Relative Humidity RH=Actual vapor pressure/saturation vapor pressure X 100% TEMPS 10C Potential 9G20C Potential 17G 10C Actual 9G20C Actual 9G RH= 9/9=100%RH= 9/17=53% Relative Humidity by Day(EXAMPLE) 6:00 AM12PM6PMMIDNIGHT T 25FT30F33F28F RH 77%RH50%RH20%RH 67%