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Spacious Skies
CONTENTS
PREFACE
SKYWATCHING
WISDOM IN THE WIND
SKY-SMARTS
What Clouds Can Tell Us
A Closer Look at Clouds Changing
A Different Way of Seeing
RECLAIMING OUR HERITAGE
METAMORPHOSIS
STANDING AT THE DAWN
EARTHWATCHING
EYES IN THE SKY
A REMOTE ISLAND
ARCTIC WASTES
COASTAL WHIRLS
FOSSIL CLOUDS
THE ROTATING EARTH
A ROBE OF WAVES
DUST AND GLINT
A BROADER VIEW
STARTING POINTS
MOIST - RELATIVELY AND ABSOLUTELY
GOING UP AND DOWN
BASICS
CONVECTION CLOUDS
Cumulus
Anvils
Cells and Streets
FRONTAL CLOUDS
Airmasses
The Thermal Wind
Jetstreams
ALTO CLOUDS
Altocumulus
Lenticular Clouds and Pileus
Castellatus and Floccus
Billows
Altostratus
ICE CLOUDS
Ice Fallout
Fallstreak Holes
Cirrostratus
Cirrocumulus
Cirrus
CUMULUS
ORIGINS
Heat
Thermals
EFFECTS OF OTHER ATMOSPHERIC CONDITIONS
Stability and Instability
Moisture
Wind and Wind Shear
NEW AND OLD CLOUDS
ARRANGEMENT OF CLOUD ELEMENTS
Lines and Clusters
Streets
A Random Arrangement
LARGE CUMULUS
Warm Rain
PILEUS: THE ELUSIVE "CAP" CLOUD
CUMULONIMBUS
STRUCTURAL FEATURES
Why Every Cb Is Unique
TYPICAL LIFE CYCLE
CUMULONIMBUS TYPES
Single cell
Multicell
WINTER CONVECTION
SEVERE WEATHER AND THE STORM ENVIRONMENT
STORM TYPES AND ORGANIZATION
THE INTENSITY OF A STORM SYSTEM
THE MULTICELL STORM
THE SUPERCELL
THE SQUALL LINE
OTHER TYPES OF SEVERE EVENTS
STORM ARRANGEMENT
STORM-SCALE AIR MOTIONS AND FEATURES
OVERVIEW
INFLOW FEATURES
ROTATION AND THE TORNADO
OUTFLOW FEATURES
MAMMA
EYES IN SPACE
THE NEW OBSERVATIONS
THE ORBITS
HOW THE PICTURE IS BUILT UP
WHAT THE PICTURES TELL US
VISIBILITY PROBLEMS
AIRMASSES
FRONTS
AIRMASSES
ANTICYCLONES
SONIC AND GRAVITY WAVES
THE SONIC WAVE
THE CONVECTION WAVE
INTERNAL GRAVITY WAVES
REFLECTED MOUNTAIN WAVES
MOUNTAIN WAVES
GRAVITY WAVES
WAVE DISPERSION
LEE WAVES
FOHN WINDS, FOHN CIRRUS, AND MOUNTAIN WAVES
ON REFLECTION
CALM
SUB-SUNS AND PILLARS
INTENSE SCATTER
LIGHTWORK
RAINBOWS AND CLOUD BOWS
HALOS - REFRACTION IN ICE CRYSTALS
BRIGHTLY COLOURED ARCS
FOGS AND TRAILS
FOG IS BEAUTIFUL
RADIATION FOG
STEAMING FOG
CONTRAILS
TRANSFORMING SEA FOG
SHIP TRAILS
HABOOB EFFECTS IN THE ATMOSPHERE
APPENDIX
THE PHYSICAL NATURE OF CLOUDS
NEW AND OLD CLOUDS
SCATTERING OF SUNSHINE
GROWTH OF DRIZZLE AND RAIN
FREEZING OF DROPLETS
RAIN FROM ICE CRYSTALS
FALLSTREAKS
ENDURING CIRRUS
RADIATION AND LAYER CLOUDS
EFFECT OF SUNSHINE ON CLOUDS
EARTH RADIATION
THE BLUE PLANET
THE AEROGRAM