ALBERT

Anmerkung: Contents: Foreword. - Introduction. - Information concerning the Taxonomic Arrangement and the Origin of the Material Examined. - Notes on Keys and Descriptions. - Glossary. - List of Abbreviations. - Key to the Genera. - Cyperus. - Eriophorum. - Scirpus. - Blysmus. - Eleocharis. - Trichophorum. - Schoenus. - Cladium. - Rhynchospora. - Kobresia. - Carex. - References. - Index of Used Specimens. - Index of Species. - Explanation of Plates. - Plates 1—39. - Fold up Map of Simple Systematical Plane Shapes and Colour Chart.

Anmerkung: Contents: Preface. - Symbols, units and numerical values. - 1. The nature and scope of meteorology. - 1.1. Meteorology in relation to other sciences. - 1.2. Variations in space and time. - 1.3. Applied meteorology. - 2. Physical properties of the atmosphere. - 2.1. Composition of dry air. - 2.1.1. Mean molecular weight. - 2.1.2. Dissociation and ionization. - 2.1.3. Escape to space of component molecules. - 2.2. Pressure, density and temperature. - 2.2.1. Definition of pressure. - 2.2.2. Values near sea level. - 2.2.3. Variations in the vertical. - 2.2.4. Diurnal fluctuations at upper levels. - 2.2.5. Horizontal pressure gradients. - 2.3. Water vapour. - 2.3.1. Humidity mixing ratio. - 2.3.2. Density of moist air. - 2.3.3. Saturation vapour pressure. - 2.3.4. Paths leading to saturation. - 2.3.5. Measurement of vapour pressure. - 2.3.6. Distribution of water vapour. - 3. Heat transfer. - 3.1. Radiation processes. - 3.1.1. Solar radiation: its energy distribution. - 3.1.2. The solar constant. - 3.1.3. Effect of the atmosphere and earth on solar radiation. - 3.1.4. Radiation from the earth and atmosphere. - 3.2. Convection. - 3.2.1. Adiabatic temperature changes. - 3.2.2. Adiabatic equation. - 3.2.3. Potential temperature: dry adiabatic lapse rate. - 3.2.4 Saturated adiabatic lapse rate. - 3.2.5. Stability and instability. - 3.3. Heat transfer in land and sea. - 3.3.1. Heating and cooling of soil. - 3.3.2. Heating and cooling of water. - 4. Condensation and precipitation. - 4.1. Microphysical processes. - 4.1.1 Condensation nuclei. - 4.1.2. Curvature and solute effects. - 4.1.3. Water-droplet clouds. - 4.1.4. Ice nuclei. - 4.1.5. Ice-crystal clouds. - 4.1.6. Precipitation from water clouds. - 4.1.7. Precipitation from mixed clouds. - 4.1.8. Thunderstorm electricity. - 4.2. Larger-scale processes. - 4.2.1. Surface cooling. - 4.2.2. Evaporation. - 4.2.3. Vertical motion. - 4.3. Cloud observations. - 4.3.1. Cloud genera: their heights and composition. - 4.3.2. Cloud recognition and general features. - 4.3.3. Effects of vertical wind shear. - 4.3.4. Cloud classification for forecasting. - 5. The tephigram. - 5.1. Construction of the diagram. - 5.1.1. Coordinates: area and energy. - 5.1.2. Isobars. - 5.1.3. Saturation mixing ratio lines. - 5.1.4. Saturated adiabatics. - 5.1.5. Height variation. - 5.2. Simple graphical computations. - 5.2.1. Height. - 5.2.2. Humidity elements. - 5.2.3. Condensation levels. - 5.2.4. Föhn effects. - 5.3. Precipitable water and precipitation rate. - 5.3.1. Formula and calculation. - 5.3.2. Precipitation rate. - 5.3.3. Water content of convection clouds. - 5.4. The effects of vertical motion on lapse rate. - 5.4.1. Unsaturated or saturated motion. - 5.4.2. Potential (convective) instability. - 5.5. Tephigram analysis. - 5.5.1. Latent instability. - 5.5.2. Air mass characteristics. - 6. Winds. - 6.1. Laws of motion and the earth's rotation. - 6.1.1. Newton's First and Second Laws. - 6.1.2. Nature of the earth's rotation. - 6.1.3. Effects of the earth's rotation: the Coriolis force. - 6.2. Inertial flow and geostrophic winds. - 6.2.1. Nature of inertial flow. - 6.2.2. Nature of geostrophic flow. - 6.2.3. Geostrophic wind equation. - 6.2.4. Wind and pressure near the equator. - 6.3. Gradient winds. - 6.4. Winds in the friction layer. - 6.5. Thermal winds. - 6.5.1. Vertical shear vector. - 6.5.2. Temperature control of the shear vector. - 6.5.3. Thermal wind equation and thickness charts. - 6.5.4. Hodographs and temperature advection. - 6.5.5. Jet streams. - 7. Instruments and observations. - 7.1. Routine surface observations. - 7.1.1. Pressure. - 7.1.2. Temperature and humidity. - 7.1.3. Precipitation and evaporation. - 7.1.4. Wind. - 7.1.5. Clouds and visibility. - 7.1.6. Sunshine and radiation. - 7.1.7. Ship observations. - 7.2. Upper air observations. - 7.2.1. Historical. - 7.2.2. The radiosonde: radar winds. - 7.2.3. Ozone measurements. - 7.3. World Weather Watch. - 7.4. Experiments in observation and interpretation. - 7.4.1. Pressure. - 7.4.2. Temperature and humidity. - 7.4.3. Evaporation and rainfall. - 7.4.4. Wind. - 7.4.5. Radiation. - 7.4.6. Topographical influences. - 8. Synoptic Meteorology. - 8.1. The surface weather map: an introduction. - 8.1.1. The plotting code. - 8.1.2. Pressure systems and features. - 8.1.3. Air masses. - 8.1.4. Fronts. - 8.2. Air mass characteristics. - 8.2.1. Classification. - 8.2.2. Modifications. - 8.2.3. Air masses over the British Isles. - 8.3. Frontal characteristics. - 8.3.1. The stability of a frontal surface. - 8.3.2. Equilibrium slope of a frontal surface. - 8.3.3. Frontal structure. - 8.4. Frontal depressions. - 8.4.1. The life cycle of a frontal depression. - 8.4.2. Cold front waves; depression families. - 8.4.3. Warm front waves. - 8.4.4. Secondaries at points of occlusion. - 8.5. Non-frontal depressions. - 8.5.1. Heat lows. - 8.5.2. Polar lows. - 8.5.3. Orographic lows. - 8.5.4. Tropical cyclones. - 8.5.5. Tornadoes. - 8.6. Anticyclones. - 8.6.1. General characteristics. - 8.6.2. Cold and warm anticyclones. - 8.7 Synoptic development. - 8.7.1. Convergence, divergence and vertical motion. - 8.7.2. Convergence and vorticity. - 8.7.3 Long waves. - 8.7.4. Circulation indices: blocking. - 8.8. Surface analysis. - 8.8.1. General. - 8.8.2. Representativeness of observations. - 8.8.3. METMAPS. - 9. Micrometeorology. - 9.1. The nature of airflow near the ground. - 9.1.1. Wind speeds over a uniform level surface. - 9.1.2. Flow within a fluid boundary layer. - 9.1.3. Shearing stress via the mixing length concept. - 9.1.4. The friction velocity u*. - 9.1.5. Interpretation of the mixing length concept. - 9.1.6. The wind profile equation in complete form. - 9.2. The influence of surface roughness on the wind. - 9.2.1. Roughness in the aerodynamic sense. - 9.2.2. Roughness in relation to shearing stress and mean wind speed. - 9.2.3. The drag coefficient CD. - 9.2.4. CD as a transfer coefficient. - 9.2.5. Effect of a change in surface roughness. - 9.3. Vertical transport by turbulence. - 9.3.1. Flux equations; use of electrical analogy. - 9.3.2. Heat flux and other calculations. - 9.3.3. Vertical temperature gradients in relation to turbulent exchange. - 10. The general circulation. - 10.1. General characteristics. - 10.1.1. Genesis and interactions. - 10.1.2. Time fluctuations. - 10.2. Observations. - 10.2.1. Time- and space-averaging. - 10.2.2. Tracers. - 10.3. Experiment and theory. - 10.3.1. The rotating vessel experiment. - 10.3.2. Conservation principles. - 10.3.3. Cellular models. - 10.4. Climatic zones. - 11. Weather forecasting. - 11.1. Historical survey. - 11.1.1. 1860-1920. - 11.1.2. 1920-1945. - 11.1.3. 1945-1960. - 11.1.4. 1960 onwards. - 11.2. Conventional forecasting. - 11.2.1. Pressure tendency. - 11.2.2. Making the forecast. - 11.3. Long-range forecasting. - 11.3.1. Statistical methods. - 11.3.2. Synoptic methods. - 11.3.3. Analogues. - 11.4. Numerical forecasting. - 11.4.1. The barotropic model. - 11.4.2. Later developments. - 11.5. Predictability and control. - 11.5.1. Short-range predictability. - 11.5.2. Medium-range predictability. - 11.5.3. Long-range predictability: climatic trends. - 11.5.4. Weather and climate modification. - Answers to Problems. - Subject Index. - The Wykeham Series.

Anmerkung: Contents: Abstract. - Introduction and Acknowledgements. - Metamorphic basement. - Plutonic rocks. - Review of plutonism in Central America, excluding Honduras. - Plutonic rocks of Honduras. - Mesozoic and eocene rocks. - General statement. - Vallę de Angeles group. - Esquias formation. - Matagalpa Formation. - Subinal redbeds. - Ignimbrites. - The pre-ignimbrite surface. - Thickness of the ignimbrites. - Lithology and mineral composition. - Associated lavas. - Ignimbrite vents. - Fluviatile and lacustrine beds associated with ignimbrites. - Age and correlation. - Chemical composition - major elements. - Origin of ignimbrite magmas. - Dikes. - Borderlands of the Gulf of Fonseca. - The Gracias Formation. - Quaternary Volcanism. - General statement. - Description of individual volcanic fields. - Gulf of Fonseea. - Volcanoes of the central highlands. - The Lake Yojoa volcanic field. - Lavas in the Sula graben. - Utila Island. - Geologic structure of Honduras. - Appendix: Microscopic Petrography. - A. Plutonic rocks. - B. Andesites and basalts of the Matagalpa Formation. - C. Lavas of the Gulf of Fonseca sequence. - D. Dike rocks. - E. Ignimbrites. - F. Quaternary lavas. - Literature cited.