Application of GPS data on Severe Weather Forecasting To investigate correlation between PWV and VIL, and hence its role in lightning/damaging winds monitoring/nowcasting.

Slides:



Advertisements
Similar presentations
JMA Takayuki MATSUMURA (Forecast Department, JMA) C Asia Air Survey co., ltd New Forecast Technologies for Disaster Prevention and Mitigation 1.
Advertisements

Atmosphere The blanket of air surrounding Earth..
Chapter 13 – Weather Analysis and Forecasting
Summer Internship Presenter: Chris Helmer. Myself Surfing Exploring Fishing Partying With Friends.
Marine Data Management Mihael M. de Souza. Area of Interest (AOI) 35º S 45º S 160º E175º E.
NEXRAD or WSR-88D [Next Generation Radar] [Weather Surveillance Radar, 1988, Doppler]
Evaluating GEM-LAM precipitable water vapour output using the southern Alberta GPS network during UNSTABLE 2008 Craig D. Smith Climate Research Division,
Estimating Atmospheric Water Vapor with Ground-based GPS Lecture 12
Chapter 9: Weather Forecasting Acquisition of weather information Acquisition of weather information Weather forecasting tools Weather forecasting tools.
Weather Data Tools. Thermometer ► Measures air temperature.
Predicting lightning density in Mediterranean storms based on the WRF model dynamic and microphysical fields Yoav Yair 1, Barry Lynn 1, Colin Price 2,
Ozan Mert Göktürk Naki Akçar Dominik Fleitmann
Anomalous Propagation Greater density slows the waves more. Less dense air does not slow the waves as much. Since density normally decreases with height,
Influences on Weather. EQ: What has an effect on the weather?
Supplemental Topic Weather Analysis and Forecasting.
GPS Atmosphere Sounding, COPS/GOP, April 10, 2006 GPS Atmosphere Sounding J. Wickert, G. Dick, G. Gendt, M.Ramatschi, and M. Rothacher GeoForschungsZentrum.
Validating the moisture predictions of AMPS at McMurdo using ground- based GPS measurements of precipitable water Julien P. Nicolas 1, David H. Bromwich.
Chapter 13 – Weather Analysis and Forecasting. The National Weather Service The National Weather Service (NWS) is responsible for forecasts several times.
Estimating Atmospheric Water Vapor with Ground-based GPS.
By Hunter E.. How to be a Meteorologist? Meteorologist is a scientist who forecast the weather. You need to have an advanced degree for becoming a meteorologist.
What is weather? Weather is a state of the atmosphere (troposphere) at a specific time and place, determined by factors including: Air pressure Humidity.
1 GNSS Reference Station Network Applications – Status and Vision Herbert Landau Trimble Munich, Germany January 2011.
Guided Notes on Gathering Weather Data
Moisture observation by a dense GPS receiver network and its assimilation to JMA Meso ‑ Scale Model Koichi Yoshimoto 1, Yoshihiro Ishikawa 1, Yoshinori.
Add To Table of Contents:
June, 2003EUMETSAT GRAS SAF 2nd User Workshop. 2 The EPS/METOP Satellite.
Mehreen RIZVI GMAT Geopositioning
1.qa RAP 1. _____amount of moisture in the air (humidity) 2. _____layer of gases that surrounds the Earth and keeps it warm and wet (atmosphere) 3. _____type.
Are You Smarter Than a 5 th Grader? 1,000,000 5th Grade Topic 1 5th Grade Topic 2 4th Grade Topic 3 4th Grade Topic 4 3rd Grade Topic 5 3rd Grade Topic.
Evaluating the Reliability of VIL Density for Determining Severe Hail in Iowa Penny Zabel.
Chapter 9: Weather Forecasting Surface weather maps 500mb weather maps Satellite Images Radar Images.
Meteorology What is it? How does it work? Meteorology in action!!
Page 1© Crown copyright 2004 Development of a Ground Based GPS Network for the Near Real Time Measurement of Integrated Water Vapour (IWV) Jonathan Jones.
Investigation 6 part 5 Weather Balloons
Guest Lecture weather briefing -- climate -- compositing -- paper review -- guest of the guest lecture -- wrap up.
Weather 101 Brainstorm Why do we study the weather? Create a concept map with as many words you know about weather.
METR February Radar Products More Radar Background Precipitation Mode: -Volume Coverage Patterns (VCP) 21: 9 elevation angles with a complete.
Lesson 1: What is Weather?
Layered Water Vapor Quick Guide by NASA / SPoRT and CIRA Why is the Layered Water Vapor Product important? Water vapor is essential for creating clouds,
Air and Weather. What is in the air? Meteorology Study of Weather.
Understanding Weather By: Chastity Reynolds. Weather Weather is the condition of the atmosphere at a particular time and place. Water Cycle: Continuous.
The Earth’s Atmosphere: Factors That Affect the Weather SOL 6.6.
1. What is a thin blanket of air that surrounds the Earth?
1.qa Do Now 1. _____amount of moisture in the air (humidity) 2. _____layer of gases that surrounds the Earth and keeps it warm and wet (atmosphere) 3.
3-D Poster Clouds and Precipitation Standard SM1e: Compare the amount of water vapor in the atmosphere to characteristic atmospheric conditions.
Chapter 7 Lesson 2 SPI’S: 5.1.8, 5.1.9, 5.1.2, , , 5.1.4, 5.1.6, 1.1.3, (Science, SS, Language, Reading)
IGARSS 2011, Vancuver, Canada July 28, of 14 Chalmers University of Technology Monitoring Long Term Variability in the Atmospheric Water Vapor Content.
CM Cheng Hong Kong Observatory HKIE ITD Annual Conference 2014 BIG DATA FOR A BIG CITY - Challenges of Big Data to Weather Services.
Chapter 5, lesson 1 Standards : Sc. 6. E. 7.2, SC.6. E. 7.6, SC.6.E. 7.7 Learning goal : TSWBAT understand weather, the variables that affect weather and.
A global, 2-hourly atmospheric precipitable water dataset from ground-based GPS measurements and its scientific applications Junhong (June) Wang NCAR/EOL/T.
Water in the Air Vocabulary Words for Chapter 15/ Section 1:
GNSS Tropospheric Products
How Does GPS Work ?. The Global Positioning System 24+ satellites 20,200 km altitude 55 degrees inclination 12 hour orbital period 5 ground control stations.
City, State By Group Names. Today’s Weather Current conditions l Temperature l Humidity l Wind l Precipitation.
Forecasting the Weather 6/8/16. Weather Forecast  Prediction of weather conditions over the next 3 to 5 days  Meteorologist: person who observes and.
Section 12.3 – Gathering Weather Data
What is it? How does it work? Meteorology in action!!
Weather and Climate Unit Vocabulary
Weather Instruments.
Atmosphere & Weather Review
Severe Weather Weather describes the conditions in the atmosphere in an area over a short period of time. Weather that is extreme and outside of normal.
Alejandro López Ontavilla
Chapter 7 Quiz.
Weather Instruments.
E.7.9A.1, E.7.9A.2, E.79A.3 Weather.
Study these weather words!
CLIMATE.
The Water Cycle and The Weather
CHAPTER 3 LESSON 2 SYSTEM INTERACTIONS.
Atmospheric Moisture and Stability
Presentation transcript:

Application of GPS data on Severe Weather Forecasting To investigate correlation between PWV and VIL, and hence its role in lightning/damaging winds monitoring/nowcasting Summer Internship at the Hong Kong Observatory 2006 Law Ka Hei (CUHK/PHY/3) Supervisor: Linus Yeung

Motivation Project Goal  Use PWV for severe weather nowcasting PWV - Precipitable Water Vapor  Represent amount of water vapor in an atmospheric column VIL - Vertically Integrated Liquid  Represent amount of liquid water in an atmospheric column  Highly related to rainfall

Calculation of PWV GPS Signal Delay Ionospheric Delay Tropospheric Delay Hydrostatic Delay Wet Delay PWV

Selection of Data PWVPWV ErrorRaw Data Source Latest Best Accuracy Center 04a

Visualization Tool – Web PWV  VIL  hksl hksl Radar Image 

PWV Climatology

Mean

Standard Deviation

PWV before Rainstorm

Scatter Plot: VIL vs PWV

VIL vs PWV Time Change

Thank You Any Questions?

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.