Pilot Balloon Radiosonde Upper Air Measurements. Pilot Balloon: Pibal A pilot balloon can be tracked visually with a single theodolite that measures the.

Slides:

Advertisements

Similar presentations

Balloonology: Reading Pibals 2009 BFA Jr. Balloonist Camp.

Advertisements

Agenda 1) Warm-Up 5 min 2) Vocab. Words 10 min 3) Projectile Motion Intro. 15 min 4) Pre-Lab Vectors 15 min 5) Vector Lab 30 min Spring scale.

“The mass balance IHF method equates the vertical flux of NH 3 from a treated area of limited upwind extent with the net integrated horizontal flux at.

Metr 51: Scientific Computing II Lecture 10: Lidar Plotting Techniques 2 Allison Charland 10 April 2012.

Types of angles A Z MLN – Horizontal angle ALM – Vertical angle

Advanced Radio and Radar

Engi 1504 – Graphics Lecture 6: Descriptive Geometry

Projectile Calculations Notes

Ground Speed of Plane. Solving Problems Using Vectors A pilot wants to fly on a bearing of 69.2°. By flying due east, he finds that a 50-mph wind, blowing.

1 EDM Calculations ASM 215 EDM CALCULATIONS. 2 EDM Calculations HORIZONTAL DISTANCE MEASUREMENT n In plane surveying, the distance between two points.

Projectile Motion characteristics and analysis procedures Objectives –Review characteristics of projectile motion (pp ) –Review factors influencing.

Pilot Balloon Radiosonde Upper Air Measurements. Pilot Balloon: Pibal A pilot balloon can be tracked visually with a single theodolite that measures the.

Chapter 5 Soundings.

Relative Motion. Point of View  A plane flies at a speed of 200. km/h relative to still air. There is an 80. km/h wind from the southwest (heading 45°

Skip to Navigation Skip to Content. Variation of Air Pressure with Altitude.

When gear A makes x turns, gear B makes u turns and gear C makes y turns., 3.6 Chain rule y turns ½ as fast as u u turns 3 times as fast as x So y turns.

Projectile Motion characteristics and analysis procedures Objectives –Review characteristics of projectile motion (pp ) –Review factors influencing.

Islamic University of Gaza Civil Engineering Department Surveying II ECIV 2332 By Belal Almassri.

8-4 Angles of Elevation and Depression Objective: To use angles of elevation and depression to solve problems Essential Understanding : You can use the.

9.6 Solving Right Triangles Inverse of the trigonometric functions.

GY403 Structural Geology Laboratory

Chapter 6 ADDITIONAL TOPICS IN TRIGONOMETRY. 6.1 Law of Sines Objectives –Use the Law of Sines to solve oblique triangles –Use the Law of Sines to solve,

SACE Stage 2 Physics Motion in 2 Dimensions.

Unit 4 Vectors & 2-D/Parabolic Motion Physics Comp Book UNIT 4: Vectors & 2-D/Projectile Motion Student will: SP1b. compare and contrast scalar and vector.

Slide 8- 1 Copyright © 2006 Pearson Education, Inc. Publishing as Pearson Addison-Wesley.

Non-Symmetrical Projectile Motion

Fire Control Naval Weapons Systems. We Know: How the target is detected, How the target is tracked, How the weapon is launched, How the weapon is propelled,

7-2 Right Triangle Trigonometry Pull out those calculators!!!

8.2 Trigonometric Ratios. Quick Review: What ways can we solve right triangles? 6 9x ⁰ ⁰ ⁰ 10 x ?

Projectile Motion Projectiles launched at an angle.

Projectiles calculations Calculating the components of a vector using trigonometry and vertical and horizontal problems.

Physics Kinematics in 2-D and Vectors 3.1 Vectors and Scalars 3.2 Addition of Vectors - Graphically 3.3 Subtraction and Scalar Multiplication.

Projectile Motion-Starter What is the path that the bike and the water take called?

Projectile Motion Also known as two dimensional motion or trajectory problems.

Agenda 1) Warm-Up 5 min 2) Turn-in Blue “Vector” Folder! 3) Vocab. Words 10 min 4) Finish Projectile Motion fill-in- blank Notes. 10 min 5) New Formulas.

Parametric Equations. You throw a ball from a height of 6 feet, with an initial velocity of 90 feet per second and at an angle of 40º with the horizontal.

Examples Some lend themselves to computer solution!

Projectile Motion (Two Dimensional)

Projectiles (2D) A projectile is any object that is in a state of freefall, or in other words an object that is only acted upon by the force of gravity.

Make a Great Map of Your Engineering Building Traverse ©Mar Dr. B. C. Paul Note – This presentation contains screen shots from the Mine Sight and.

GEOMETRY Describe 1 and 2 as they relate to the situation shown. One side of the angle of depression is a horizontal line. 1 is the angle of depression.

Surveying 1 / Dr. Najeh Tamim CHAPTER 5 ANGLES, DIRECTIONS, AND ANGLE MEASURING EQUIPMENT.

Velocity Triangles and Relative Velocity A typical problem: A helicopter can fly at 200 km h  1 in still air. It has to travel from an airport to a hospital.

6.3 Graphing Sine and Cosine Functions Objective: Use the graphs of the sine and cosine functions.

COURSE PLAN Department of mining engineering, University of engineering & technology, lahore.

CHAPTER 6 SECTION 1 Projectile Motion. Objects launched either horizontally or at an angle are considered to be projectiles. All motion can be analyzed.

Section  Multiply like components together, then add u 1 v 1 + u 2 v 2 Length of a vector: Angle between Vectors Theorem:

Objective To use angles of elevation and depression to solve problems.

Upper Air Wind Measurements by Weather Radar Iwan Holleman, Henk Benschop, and Jitze vd Meulen Contents: Introduction to Doppler Radar Velocity Azimuth.

Sin x = Solve for 0° ≤ x ≤ 720°

An Application of Trigonometry Heights and Distances

6.2 General projectile motion

Quality of Weather Radar Wind Profiles Iwan Holleman (KNMI) Introduction of VAD technique in early 60s Development of VVP technique in late 70s Strong.

Geometry of GSO Links Visibility : Elevation angle and azimuth angle.

4.6 Related Rates.

Distance, displacement, speed, velocity, solving equations

Speed and Velocity.

Table of Contents 19. Section 3.11 Related Rates.

8-3 Solving Right Triangles

Vertically-Uniform Westerly Winds

MATH 1330 Section 7.1.

Accumulation and Particle Motion

Find a vector a with representation given by the directed line segment {image} . A(-9, -1) , B(-5, 8) {image}

10.4 Parametric Equations.

MATH 1330 Section 7.1.

MATH 1330 Section 7.1.

Tumblebuggy Lab: Part 1 Purpose: to determine the speed of your Tumblebuggy. Procedure: Use a piece of masking tape to mark the starting line for your.

Accumulation and Particle Motion

Presentation transcript:

Pilot Balloon Radiosonde Upper Air Measurements

Pilot Balloon: Pibal A pilot balloon can be tracked visually with a single theodolite that measures the azimuth, relative to True North, and the elevation angle. If the balloon ascent rate is known (assumed from balloon and gas specifications), position of the balloon can be determined and the wind velocity inferred from successive balloon positions. The procedure is to track the balloon optically with the theodolite and measure the azimuth and elevation angles at 1 min or 30 s intervals. Height, z, is determined from the known or assumed ascent rate.

Z S Φ θ ElevationAzimuth X Z Pilot Balloon: Single Theodolite Geometry x = S sin θ y = S cos θ z = R sin Φ s = R cos Φ Solve for x and y: X = zcot Φ sin θ Y = zcot Φ cos θ X and y define the horizontal position of the balloon relative to the theodolite, S is the distance from the theodolite to balloon, R is slant range to the balloon

Pilot Balloon: Single Theodolite Geometry u = (x n -x n-1 )/30 v = (y n -y n-1 )/30 For 30 s intervals Horizontal wind speed = (u 2 +v 2 ) 1/2 Wind direction is computed following Appendix E.

Assignment: Due Tuesday May 5: Calculate the wind profiles from the theodolite lab. Each student needs to digitize their lab book data and input the data into either Excel or a text file. Send these files to the instructor and the files will be put onto the course website. Once the profiles are calculated: Plot the profiles in two plots: 1. wind speed vs. z 2. wind direction vs. z Comment on the wind structure.

Radiosonde What are the advantages of a radiosonde?