Global Campus
The WMO Global Campus E-Library
The WMO Global Campus initiative is proud to offer this WMOLearn Library of resources. This library provides a searchable collection of educational resources, including WMO publications and education and training materials from various contributing organisations and individuals. Search by WMO competency framework, Main Topics, Region and Country, and/or Nature of Information to find materials useful for training or self-directed learning.
Please note that resources contributed by Members will reside on other websites and may allow limited access or require login. For copyright information, see the WMO Global Campus Copyright Practice Standards and the contributor’s website. Quality standards are described in the Recommended Quality Guidelines for Global Campus E-Library Submissions.
WMO Global Campus resources provided on this Site are provided “as is”, without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose and non-infringement. The WMO specifically does not make any warranties or representations as to the accuracy or completeness of any such resources.
WMO Global Campus resources provided on this Site are provided “as is”, without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose and non-infringement. The WMO specifically does not make any warranties or representations as to the accuracy or completeness of any such resources.
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Writing TAFS for Ceilings and Visibility
"Writing TAFs for Ceilings and Visibility" is the fifth unit in the Distance Learning Aviation Course 2 (DLAC2) series on producing TAFs that meet the needs of the aviation community. In addition to providing information about tools for diagnosing low ceilings and reduced in visibility and its related impacts, the module extends the Practically Perfect TAF (PPTAF) process to address an airport's operational thresholds. By understanding the thresholds at airports for which they produce TAFs, forecasters will be better able to produce a PPTAF. The unit also examines how to communicate effectivel ...
Writing TAFS for Winter Weather
"Writing TAFs for Winter Weather" is the fourth unit in the Distance Learning Aviation Course 2 (DLAC2) series on producing TAFs that meet the needs of the aviation community. In addition to providing information about tools for diagnosing winter weather and its related impacts, the module extends the Practically Perfect TAF (PPTAF) process to address an airport’s operational thresholds. By understanding the thresholds at airports for which they produce TAFs, forecasters will be better able to produce a PPTAF. The unit also examines how to communicate effectively the logic and uncertainty usin ...
Forecasting Clear Air Turbulence for Aviation
This case-based, interactive lesson teaches a process for forecasting clear air turbulence (CAT) and applies it to a case that occurred over the U.S. Information about the synoptic patterns that generate CAT and the products and indices used to identify it are woven into the case. Some of this information is presented in optional sections intended for those who are unfamiliar with the material or want a refresher. The lesson is aimed at national and international forecasters who make aviation forecasts.
Introduction to Tropical Meteorology, 2nd Edition, Chapter 5: The Distribution of Moisture and Precipitation
Moisture and precipitation distribution governs life in the tropics. Surplus heating and rising motion in the tropics ignites the global water and energy cycles and influences weather in the midlatitudes. This chapter presents the horizontal and vertical distribution of water vapor, tropical cloud formation and distribution, the lifecycle and precipitation characteristics of tropical mesoscale convective systems, and the variability of tropical precipitation on yearly, seasonal, and hourly time-scales.
Best Practices in Tropical Cyclone Briefings
Crafting clear, concise and effective messages focused on customer needs is a crucial skill in every decision-support situation. Tropical cyclones that threaten a coastline have the potential to inflict devastating damage to communities and communicating relevant weather information will assist decision-makers in their plans and preparation work. This lesson examines how to effectively prepare for the hurricane season and then focuses on how best to support NWS partners through meteorological briefings during tropical cyclone events. Basic familiarity with probabilistic forecast guidance is re ...
Tropical Synoptic Meteorology Curriculum Package
The Tropical Synoptic Meteorology Curriculum Package is a university-level, online meteorology course package. It is freely available to interested institutions that are expanding their course offerings, particularly their online offerings. The course fulfills the synoptic and mesoscale meteorology requirements for the World Meteorological Organization (WMO) Basic Instruction Package for Meteorology (BIP-M), but with an emphasis on the tropics to provide focus for those working or planning to work in tropical regions. The course utilizes existing and newly developed resources, including the on ...
Regional Study Guide: Review for Aeronautical Forecasters in Africa, selections from Introduction to Tropical Meteorology, 2nd edition
This Regional Study Guide highlights the sections of the Introduction to Tropical Meteorology, 2nd Edition online textbook that are applicable to aeronautical forecasting operations in Africa. Topics include remote sensing, global circulations, tropical variability, tropical cyclones and the challenges encountered when forecasting tropical weather. The guide consists of a list of links to the content in the textbook and has its own stand-alone quiz.
Unit Hydrograph Theory
The role of unit hydrograph theory in the flood prediction process is to provide an estimate of streamflow given the precipitation. A unit hydrograph shows the temporal change in flow, or discharge, per unit of runoff from excess precipitation. In other words, the unit hydrograph shows how the flow of a stream will be affected over time by the addition of one unit of runoff. This module offers a thorough introduction to the use of unit hydrographs and the application of unit hydrograph theory in flood prediction. Through use of rich illustrations, animations, and interactions, this module expl ...
S-290 Unit 5: Temperature and Relative Humidity Relationships
“S-290 Unit 5: Temperature and Relative Humidity Relationships” module focuses on methods of describing humidity in the atmosphere and how temperature changes can affect relative humidity. Topics from this module will be further related to effects on potential fire behavior in other modules of the Intermediate Wildland Fire Behavior Course.
Volcanic Ash: Volcanism
This module is the second in the four-part Volcanic Ash series. It provides information about the geological, and geophysical processes related to volcanic activity and volcanic ash in the atmosphere and on the ground. It discusses four types of volcanic eruptions and describes six major volcanic hazards: Tephra Pyroclastic flow Lahar Lava flow Volcanic gas Tsunami
Best Practices for Minimizing Errors during GNSS Data Collection
Aimed at surveyors and GIS professionals who use geodetic-quality GNSS equipment to determine positions for land planning, coastal monitoring and other purposes, this video covers best practices for reducing errors in the areas of: 1. location and environment, 2. equipment setup and 3. observation times and accuracy checks. This resource is hosted on COMET's YouTube Channel.
Principles of Convection III: Shear and Convective Storms
This module discusses the role of wind shear in the structure and evolution of convective storms. Using the concept of horizontal vorticity, the module demonstrates how shear enhances uplift, leading to longer-lived supercell and multicell storms. The module also explores the role of shear in the development of mesoscale convective systems, including bow echoes and squall lines. Most of the material in this module previously appeared in the COMET modules developed with Dr. Morris Weisman. This version includes a concise summary for quick reference and a final exam to test your knowledge. The m ...
How Mesoscale Models Work
The goal of this training module is to help you increase your understanding of how mesoscale models work. Such understanding, in turn, can help you more efficiently and accurately evaluate model-generated forecast products.
Ocean Acidification
The chemistry of the world’s oceans is changing. Ocean acidity is creeping upward, a result of rising atmospheric carbon dioxide. The added carbon dioxide depletes seawater of carbonate, a chemical constituent of minerals that form the shells and structures of animals including corals, molluscs, plankton, and others. The accelerating impacts are expected to reverberate through the marine food web. Most people are unaware of ocean acidification and its expected impacts. This lesson will educate policy makers and university students about its causes and consequences. The lesson explains the chem ...
Overview of Watershed and Channel Sedimentation
This lesson provides an overview of the primary influences of watershed and channel sedimentation. In a short narrated portion of the lesson, we explore a section of the Rio Grande watershed and channel in New Mexico using Google Earth imagery, river profiles, and graphic animations. We highlight features of the upland catchments, the river channel, and the Elephant Butte Reservoir. We then demonstrate how environmental factors (climate, geography, land use changes, reservoirs) impact the supply and movement of sediments for the Rio Grande and other rivers. The focus is on the three primary pr ...
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