Daytime, Nighttime

Total Page:16

File Type:pdf, Size:1020Kb

Daytime, Nighttime Daytime, Nighttime Written by Kim Toffan Text Type: Non-fiction: Description—Comparison Summary: This book uses repeated text to describe what a variety of living things do in both the day and the night, from the poppy flower to a moose. The end of the book poses the question back to the reader, asking what they do in the day and night. Text Features Print Concepts • consistent placement of text • two or three lines of text with return sweep • repeated phrases ‘In the day’ and ‘In the night’ • punctuation: periods, question mark Visual Literacy • yellow sun and blue moon backgrounds accompanying each photo denote daytime and nighttime • supportive photos for text FIRST READING Reading Strategies Comprehension • a range of strategies are integrated throughout the lesson (Making Connections, Predicting, Self-monitoring, Evaluating, Inferring, Analyzing, Synthesizing) • the comprehension purpose for reading focuses on Analyzing Working with Words • comprehending vocabulary from context and pictures Assessment Opportunities Note each student’s ability to: • attend to print • analyze visual information and predict meaning from the photographs • ask and respond to questions • apply the inquiry question to classroom and school activities Time: approximately 30 minutes 1 Literacy Place for the Early Years—Grade 1 © 2011 Scholastic Canada Ltd. BEFORE READING Establishing the Inquiry Focus Just like we sleep during the night, • Explain to the students that, just like and go to school during the day, us, many living things do different other living things do different things things in the day than they do at night. at night than they do during the day. [Making connections] Some animals are busy during the day, and some animals are busy during the night. Activating and Building Background Knowledge • Build a simple T-chart with the students Let's think about some of our daytime to record some typical daytime and and nighttime activities. What are nighttime activities they might do on a some things that we do only in the weekday or evening. Allow students time daytime or only at nighttime? What to share with a partner then ask partners do you do after school? What do you to share with the whole group. Record do before school? What do you do some of these ideas on the chart. during the day on the weekend? [Making connections] Daytime Nighttime school sleep ride my bike have a bath go to my friend’s house get ready for bed school choir practice watch TV • Show students the front What do you think this book will be about? Why and back covers of Daytime, do you think that? What clues do you get from Nighttime and read the the front and back covers? What do you notice author’s name. Provide about what the fox does during the daytime and prompts to encourage students nighttime? What might we find out in this book? to make predictions about the possible content of the book. [Predicting/inferring/making connections] • Prepare the way for further inquiry in Today, we are going to read a book exploring how daily and seasonal changes about animals and plants and what affect living things. [Self-monitoring/ they do in the daytime and nighttime. making connections] Have you ever thought about what plants do at night? Do you have any ideas about what they might do? • Show the back cover of the book again Looking at the photograph of this and read the question. Ask students to moose, I can see that moose eat in consider how many different answers the daytime. I think that a moose there might be to this question. [Self- sleeps at night like we do because I monitoring/making connections] have seen them walking around in the daytime. I wonder if I am going to learn a new fact about moose from this book. Teaching Tip: If you have already read the Shared Reading text Is This a Moose? by Jenny Armstrong, link this selection to your discussion. (See Literacy Place for the Early Years Grade One.) [Making connections] 2 Literacy Place for the Early Years—Grade 1 © 2011 Scholastic Canada Ltd. Setting a Purpose for Reading • Ask students to read with you to find out Let's read to find out what some about the habits of a variety of animals different animals and plants do in and plants and what they do during the the day and at night. The nighttime and daytime. [Analyzing] photographs will add lots of information so we'll read slowly and look at them carefully. DURING READING • Begin reading the text and invite students to join in after the first two text boxes have been read on page 2. Track the print with a pointer. Teaching Tip: Chiming in will be stronger on this first read if you begin by modelling for the students using think alouds. Start by reflecting on and analyzing the title page photo and then the photos on page 2. Next, read the text boxes on page 2 to establish the repeated pattern of the beginning phrases. Slowing to reflect on each new set of photographs, before beginning to read again, should help assist students in reading more of the text with you. • Discuss concepts in the text by offering prompts: - (title page) Look at this photo on the title page. Is it daytime or nighttime? Do you know what this animal is called? What does it look like he is doing? [Analyzing/inferring] - (page 2) Here we have two photos. One was taken in the daytime and one was taken at nighttime. How do we know it is daytime or nighttime in the photos? What does the duck appear to be doing in the daytime photo? What kind of clue does the water give you about the time of day? What about the duck in the nighttime photo? [Analyzing/inferring/making connections] - (page 2) What do you notice about the background of the page, behind the photos? Why do you think the yellow sun and blue moon are there? [Analyzing/ inferring] - (page 3) I’m thinking that if the fox goes hunting in the night, other animals must not sleep at night, either. What other animals can you think of that are awake at night and sleep during the day? [Making connections/self-monitoring] - (page 4) Here is the picture we saw on the title page. Now we can use the photographs and text here to find out what this animal is called and what it likes to do at night. [Making connections/analyzing/synthesizing] - (page 5) What animal are we going to read about now? We already know some facts about moose. What did we predict a moose does in the day and at night? Let’s read and find out if we were right. [Predicting/making connections/self- monitoring] - (page 6) This flower looks beautiful here in the sun. I know that morning glories only stay open in the morning because I have some in my garden. They close up around lunchtime. It looks like the flower has closed up in the nighttime photo. [Making connections/inferring] - (page 7) I’m thinking that we already know some things about bats. Looking at the photos on this page, do you think we will learn a new fact about bats from the text? [Making connections/inferring] - (page 8) This page looks different from the others. What can we see that is similar to the other pages? What is different? What is the punctuation mark at the end of the last sentence? Could this be a clue for us as we look at the photograph? [Analyzing/inferring/self-monitoring] 3 Literacy Place for the Early Years—Grade 1 © 2011 Scholastic Canada Ltd. • Clarify any vocabulary that might limit comprehension (e.g., ‘cool,’ ‘tucked,’ ‘curled,’ ‘damp,’ ‘slimy,’ ‘crunchy’). Use the photographs to support the discussion and contextualize the words using personal experiences your students may have had (e.g., ‘tucked’: my tissue in my pocket; ‘damp’: the grass at recess after a light rain). AFTER READING • Ask students to turn and tell a partner Tell your partner about an about what one of the animals or animal or plant we read about. plants do in the daytime and in the Tell about what things they do nighttime. Have some students share in the daytime and nighttime. their responses with the whole group. [Analyzing/synthesizing] • As a class, reread the question Now that we have read this text and thought posed on the last page. Revisit about the question on the last page, let's look the T-chart made in Before back at what we recorded as our daytime and Reading and ask students nighttime activities. Did reading the text give if our chart answers this you some other activities to record? I know the question. Students may wish photograph on the last page makes me think of to suggest more activities, a couple of activities we didn't write down. which can be added to the chart, as well. Teaching Tip: Adding new information to the T-chart in a different colour signals to students that reading the text helped to further the inquiry. • Ask the students why they think the text in the book is in white boxes. Does this help us to read it? [Inferring/evaluating] • Ask those students who have a pet at home to observe their pet in the daytime and at nighttime (students may need to enlist the help of their parents for nighttime monitoring). Tell students to be prepared to share their findings with the class (before the second reading of the text). • Provide students with a series of word cards taken from your T-chart.
Recommended publications
  • Starry Starry Night Part 1
    Starry Starry Night Part 1 DO NOT WRITE ON THIS PORTION OF THE TEST 1. If a lunar eclipse occurs tonight, when is the soonest a solar eclipse can occur? A) Tomorrow B) In two weeks C) In six months D) In one year 2. The visible surface of the Sun is called its A) corona B) photosphere C) chromosphere D) atmosphere 3. Which moon in the Solar System has lakes and rivers on it: A) Triton B) Charon C) Titan D) Europa 4. The sixth planet from the Sun is: A) Mars B) Jupiter C) Saturn D) Uranus 5. The orbits of the planets and dwarf planets around the Sun are in the shape of: A) An eclipse B) A circle C) An ellipse D) None of the above 6. True or False: During the summer and winter solstices, nighttime and daytime are of equal length. 7. The diameter of the observable universe is estimated to be A) 93 billion miles B) 93 billion astronomical units C) 93 billion light years D) 93 trillion miles 8. Asteroids in the same orbit as Jupiter -- in front and behind it -- are called: A) Greeks B) Centaurs C) Trojans D) Kuiper Belt Objects 9. Saturn's rings are made mostly of: A) Methane ice B) Water ice C) Ammonia ice D) Ice cream 10. The highest volcano in the Solar System is on: A) Earth B) Venus C) Mars D) Io 11. The area in the Solar System just beyond the orbit of Neptune populated by icy bodies is called A) The asteroid belt B) The Oort cloud C) The Kuiper Belt D) None of the above 12.
    [Show full text]
  • Conspicuity of High-Visibility Safety Apparel During Civil Twilight
    UMTRI-2006-13 JUNE 2006 CONSPICUITY OF HIGH-VISIBILITY SAFETY APPAREL DURING CIVIL TWILIGHT JAMES R. SAYER MARY LYNN MEFFORD CONSPICUITY OF HIGH-VISIBILITY SAFETY APPAREL DURING CIVIL TWILIGHT James R. Sayer Mary Lynn Mefford The University of Michigan Transportation Research Institute Ann Arbor, MI 48109-2150 U.S.A. Report No. UMTRI-2006-13 June 2006 Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. UMTRI-2006-13 4. Title and Subtitle 5. Report Date Conspicuity of High-Visibility Safety Apparel During Civil June 2006 Twilight 6. Performing Organization Code 302753 7. Author(s) 8. Performing Organization Report No. Sayer, J.R. and Mefford, M.L. UMTRI-2006-13 9. Performing Organization Name and Address 10. Work Unit no. (TRAIS) The University of Michigan Transportation Research Institute 11. Contract or Grant No. 2901 Baxter Road Ann Arbor, Michigan 48109-2150 U.S.A. 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered The University of Michigan Industry Affiliation Program for 14. Sponsoring Agency Code Human Factors in Transportation Safety 15. Supplementary Notes The Affiliation Program currently includes Alps Automotive/Alpine Electronics, Autoliv, Avery Dennison, Bendix, BMW, Bosch, Com-Corp Industries, DaimlerChrysler, DBM Reflex, Decoma Autosystems, Denso, Federal-Mogul, Ford, GE, General Motors, Gentex, Grote Industries, Guide Corporation, Hella, Honda, Ichikoh Industries, Koito Manufacturing, Lang- Mekra North America, Magna Donnelly, Muth, Nissan, North American Lighting, Northrop Grumman, OSRAM Sylvania, Philips Lighting, Renault, Schefenacker International, Sisecam, SL Corporation, Stanley Electric, Toyota Technical Center, USA, Truck-Lite, Valeo, Visteon, 3M Personal Safety Products and 3M Traffic Safety Systems Information about the Affiliation Program is available at: http://www.umich.edu/~industry 16.
    [Show full text]
  • Dark Model Adaptation: Semantic Image Segmentation from Daytime to Nighttime
    Dark Model Adaptation: Semantic Image Segmentation from Daytime to Nighttime Dengxin Dai1 and Luc Van Gool1;2 Abstract— This work addresses the problem of semantic also under these adverse conditions. In this work, we focus image segmentation of nighttime scenes. Although considerable on semantic object recognition for nighttime driving scenes. progress has been made in semantic image segmentation, it Robust object recognition using visible light cameras is mainly related to daytime scenarios. This paper proposes a novel method to progressive adapt the semantic models trained remains a difficult problem. This is because the structural, on daytime scenes, along with large-scale annotations therein, textural and/or color features needed for object recognition to nighttime scenes via the bridge of twilight time — the time sometimes do not exist or highly disbursed by artificial lights, between dawn and sunrise, or between sunset and dusk. The to the point where it is difficult to recognize the objects goal of the method is to alleviate the cost of human annotation even for human. The problem is further compounded by for nighttime images by transferring knowledge from standard daytime conditions. In addition to the method, a new dataset camera noise [32] and motion blur. Due to this reason, of road scenes is compiled; it consists of 35,000 images ranging there are systems using far-infrared (FIR) cameras instead from daytime to twilight time and to nighttime. Also, a subset of the widely used visible light cameras for nighttime scene of the nighttime images are densely annotated for method understanding [31], [11]. Far-infrared (FIR) cameras can be evaluation.
    [Show full text]
  • Daytime and Nighttime Polar Cloud and Snow Identification Using MODIS Data Qing Trepte SAIC, Hampton, VA USA Patrick Minnis Atmo
    Daytime and Nighttime Polar Cloud and Snow Identification Using MODIS Data Qing Trepte SAIC, Hampton, VA USA Patrick Minnis Atmospheric Sciences, NASA Langley Research Center, Hampton, VA USA Robert F. Arduini SAIC, Hampton, VA USA Extended Abstract for SPIE 3rd International Asia-Pacific Environmental Remote Sensing Symposium 2002: Remote Sensing of the Atmosphere, Ocean, Environment, and Space Hangzhou, China October 23-27, 2002 Daytime and nighttime polar cloud and snow identification using MODIS data Qing Z. Trepte*a, Patrick Minnisb, Robert F. Arduinia aScience Applications International Corp.; bAtmospheric Sciences, NASA Langley Research Center ABSTRACT The Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra, with its high horizontal resolution and frequent sampling over Arctic and Antarctic regions, provides unique data sets to study clouds and the surface energy balance over snow and ice surfaces. This paper describes a polar cloud mask using MODIS data. The daytime cloud and snow identification methods were developed using theoretical snow bi-directional reflectance models for the MODIS 1.6 and 3.75-µm channels. The model-based polar cloud mask minimizes the need for empirically adjusting the thresholds for a given set of conditions and reduces the error accrued from using single-value thresholds. During night, the MODIS brightness temperature differences (BTD) for 3.75 - 11, 3.75 - 12, 8.55 - 11, and 6.7 - 11 µm are used to detect clouds while snow and ice maps are used to determine snow and ice surfaces. At twilight, the combination of the 1.6-µm reflectance and the 3.75 - 11-µm BTD are used to detect clouds.
    [Show full text]
  • Federal Communications Commission § 73.1730
    Federal Communications Commission § 73.1730 writing, is signed by the licensees of ing daytime and until local sunset if the stations affected thereby and filed located west of the Class A station on in triplicate by each licensee with the the channel, or until local sunset at FCC in Washington, DC prior to the the Class A station if located east of time of the time of the proposed that station. Operation is also per- change. If time is of the essence, the mitted during nighttime hours not actual departure in operating schedule used by the Class A station or other may precede the actual filing of writ- stations on the channel. ten agreement, provided appropriate (b) No authorization will be granted notice is sent to the FCC. for: (d) If the license of an AM station au- (1) A new limited time station; thorized to share time does not specify (2) A limited time station operating the hours of operation, the station may on a changed frequency; be operated for the transmission of reg- (3) A limited time station with a new ular programs during the experimental transmitter site materially closer to period provided an agreement thereto the 0.1 mV/m contour of a co-channel is reached with the other stations with U.S. Class A station; or which the broadcast day is shared: And (4) Modification of the operating fa- further provided, Such operation is not cilities of a limited time station result- in conflict with § 73.72 (Operating dur- ing in increased radiation toward any ing the experimental period).
    [Show full text]
  • The Effectiveness of Daytime Running Lights for Passenger Vehicles
    DOT HS 811 029 September 2008 The Effectiveness of Daytime Running Lights For Passenger Vehicles This report is free of charge from the NHTSA Web site at www.nhtsa.dot.gov This publication is distributed by the U.S. Department of Transportation, National Highway Traffic Safety Administration, in the interest of information exchange. The opinions, findings and conclusions expressed in this publication are those of the author(s) and not necessarily those of the Department of Transportation or the National Highway Traffic Safety Administration. The United States Government assumes no liability for its content or use thereof. If trade or manufacturers’ names or products are mentioned, it is because they are considered essential to the object of the publication and should not be construed as an endorsement. The United States Government does not endorse products or manufacturers. Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. DOT HS 811 029 4. Title and Subtitle 5. Report Date The Effectiveness of Daytime Running Lights for Passenger Vehicles September 2008 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Jing-Shiarn Wang 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Office of Regulatory Analysis and Evaluation 11. Contract or Grant No. National Center for Statistics and Analysis National Highway Traffic Safety Administration Washington, DC 20590 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Department of Transportation National Highway Traffic Safety Administration NHTSA Technical Report 1200 New Jersey Avenue SE. 14. Sponsoring Agency Code Washington, DC 20590 15.
    [Show full text]
  • Digital Daylight Observations of the Planets with Small Telescopes
    EPSC Abstracts Vol. 8, EPSC2013-795, 2013 European Planetary Science Congress 2013 EEuropeaPn PlanetarSy Science CCongress c Author(s) 2013 Digital daylight observations of the planets with small telescopes Emmanouel (Manos) I. Kardasis (1) (1) Hellenic Amateur Astronomy Association , Athens-Greece [email protected] / Tel.00306945335808 ) Abstract the planetary imaging methodology with the sun above the horizon and some observational results. Planetary atmospheres are extremely dynamical, showing a variety of phenomena at different spatial 2. Methodology and temporal scales, therefore continuous monitoring is required. Amateur astronomers have The basic steps of digital planetary observations are provided a great amount of observations in the presented at [6]. Though, there are some special astronomical community. Some of which are difficulties in DDO, which will be presented along unique made under difficult observational with some solutions: conditions. When the planets are close to the sun, observations can only be made either in twilight or 1. Telescope base alignment. in broad daylight. The use of digital technology in recent years has made feasible daytime planetary 2. Filters observing programs. In this work we present the methodology and some results of digital daylight 3. Position of the planet in the sky observations (DDO) of planets obtained with a small telescope (11inches, 0.28 m). This work may 4. Finding the planet motivate more observers to digitally observe the planets during the day especially when this can be 5. Planetary viewing on the pc screen / important and unique. Focusing 1. Introduction 6. Camera settings Amateur astronomers worldwide continuously 7. Reflections & Thermal heating capturing many interesting hi-resolution images of the ever changing planetary atmospheres.
    [Show full text]
  • On the Controls of Daytime Precipitation in the Amazonian Dry Season
    BNL-113652-2017-JA On the Controls of Daytime Precipitation in the Amazonian Dry Season Virendra P. Ghate and Pavlos Kollias Accepted for publication in Journal of Hydrometeorology December 2016 Environmental & Climate Science Dept. Brookhaven National Laboratory U.S. Department of Energy USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23) Notice: This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or any third party’s use or the results of such use of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
    [Show full text]
  • IJEST Template
    Research & Reviews: Journal of Space Science & Technology ISSN: 2321-2837 (Online), ISSN: 2321-6506 V(Print) Volume 6, Issue 2 www.stmjournals.com Diurnal Variation of VLF Radio Wave Signal Strength at 19.8 and 24 kHz Received at Khatav India (16o46ʹN, 75o53ʹE) A.K. Sharma1, C.T. More2,* 1Department of Physics, Shivaji University, Kolhapur, Maharashtra, India 2Department of Physics, Miraj Mahavidyalaya, Miraj, Maharashtra, India Abstract The period from August 2009 to July 2010 was considered as a solar minimum period. In this period, solar activity like solar X-ray flares, solar wind, coronal mass ejections were at minimum level. In this research, it is focused on detailed study of diurnal behavior of VLF field strength of the waves transmitted by VLF station NWC Australia (19.8 kHz) and VLF station NAA, America (24 kHz). This research was carried out by using VLF Field strength Monitoring System located at Khatav India (16o46ʹN, 75o53ʹE) during the period August 2009 to July 2010. This study explores how the ionosphere and VLF radio waves react to the solar radiation. In case of NWC (19.8 kHz), the signal strength recording shows diurnal variation which depends on illumination of the propagation path by the sunlight. This also shows that the signal strength varies according to the solar zenith angle during daytime. In case of VLF signal transmitted by NAA at 24 kHz, the number of sunrises and sunsets are observed in VLF signal strength due to the variations of illumination of the D-region during daytime. In both the cases, the signal strength is more stable during daytime and fluctuating during nighttime due to the presence and absence of D-region during daytime and nighttime respectively.
    [Show full text]
  • When Does Sabbath Start &
    WHEN DOES SABBATH START & END? Leviticus 23:32 “It shall be unto you a sabbath of rest, and ye shall afflict your souls: in the ninth day of the month at even, from even unto even, shall ye celebrate your sabbath.” ● Weekly Sabbath, New Moons, & High Sabbaths ALL START AT EVENING AND ENDS THE NEXT EVENING. HOW DO I KNOW WHEN IT IS EVENING? Genesis 1:5 “And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.” ● The daytime is when there is still light out. ● Evening is NIGHT TIME WHEN IT IS COMPLETELY DARK EXCEPT FOR THE MOON & STARS. ● The sun, moon, and stars were not created till Day 4 of creation see Genesis 1:14-19. SUNSET IS NOT WHEN SABBATH STARTS. SUNSET IS NOT WHEN NIGHT/DARKNESS STARTS. IT IS NOT COMPLETELY DARK TILL AFTER ASTRONOMICAL TWILIGHT WHEN THE SUN IS 18 DEGREES BELOW THE HORIZON WHICH IS KNOWN AS ASTRONOMICAL DUSK. ● Twilight is the time between day and night when there is light outside, but the Sun is below the horizon. There are three stages of twilight before it is NIGHT/DARK. 1. Civil Twilight, Dawn, and Dusk: Civil twilight occurs when the Sun is less than 6 degrees below the horizon. In the morning, civil twilight begins when the Sun is 6 degrees below the horizon and ends at sunrise. In the evening, it begins at sunset and ends when the Sun reaches 6 degrees below the horizon. ■ Civil dawn is the moment when the center of the Sun is 6 degrees below the horizon in the morning.
    [Show full text]
  • Understanding Golden Hour, Blue Hour and Twilights
    Understanding Golden Hour, Blue Hour and Twilights www.photopills.com Mark Gee proves everyone can take contagious images 1 Feel free to share this ebook © PhotoPills April 2017 Never Stop Learning The Definitive Guide to Shooting Hypnotic Star Trails How To Shoot Truly Contagious Milky Way Pictures A Guide to the Best Meteor Showers in 2017: When, Where and How to Shoot Them 7 Tips to Make the Next Supermoon Shine in Your Photos MORE TUTORIALS AT PHOTOPILLS.COM/ACADEMY Understanding How To Plan the Azimuth and Milky Way Using Elevation The Augmented Reality How to find How To Plan The moonrises and Next Full Moon moonsets PhotoPills Awards Get your photos featured and win $6,600 in cash prizes Learn more+ Join PhotoPillers from around the world for a 7 fun-filled days of learning and adventure in the island of light! Learn More We all know that light is the crucial element in photography. Understanding how it behaves and the factors that influence it is mandatory. For sunlight, we can distinguish the following light phases depending on the elevation of the sun: golden hour, blue hour, twilights, daytime and nighttime. Starting time and duration of these light phases depend on the location you are. This is why it is so important to thoughtfully plan for a right timing when your travel abroad. Predicting them is compulsory in travel photography. Also, by knowing when each phase occurs and its light conditions, you will be able to assess what type of photography will be most suitable for each moment. Understanding Golden Hour, Blue Hour and Twilights 6 “In almost all photography it’s the quality of light that makes or breaks the shot.
    [Show full text]
  • Glossary of Severe Weather Terms
    Glossary of Severe Weather Terms -A- Anvil The flat, spreading top of a cloud, often shaped like an anvil. Thunderstorm anvils may spread hundreds of miles downwind from the thunderstorm itself, and sometimes may spread upwind. Anvil Dome A large overshooting top or penetrating top. -B- Back-building Thunderstorm A thunderstorm in which new development takes place on the upwind side (usually the west or southwest side), such that the storm seems to remain stationary or propagate in a backward direction. Back-sheared Anvil [Slang], a thunderstorm anvil which spreads upwind, against the flow aloft. A back-sheared anvil often implies a very strong updraft and a high severe weather potential. Beaver ('s) Tail [Slang], a particular type of inflow band with a relatively broad, flat appearance suggestive of a beaver's tail. It is attached to a supercell's general updraft and is oriented roughly parallel to the pseudo-warm front, i.e., usually east to west or southeast to northwest. As with any inflow band, cloud elements move toward the updraft, i.e., toward the west or northwest. Its size and shape change as the strength of the inflow changes. Spotters should note the distinction between a beaver tail and a tail cloud. A "true" tail cloud typically is attached to the wall cloud and has a cloud base at about the same level as the wall cloud itself. A beaver tail, on the other hand, is not attached to the wall cloud and has a cloud base at about the same height as the updraft base (which by definition is higher than the wall cloud).
    [Show full text]