Info
- Utilizzare la checkbox di selezione a fianco di ciascun documento per attivare le funzionalità di stampa, invio email, download nei formati disponibili del (i) record.
Haze in the Grand Canyon [[electronic resource] ] : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council
| Haze in the Grand Canyon [[electronic resource] ] : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council |
| Pubbl/distr/stampa | Washington, D.C., : National Academy Press, 1990 |
| Descrizione fisica | 1 online resource (107 p.) |
| Altri autori (Persone) | DuceRobert A. <1935-> |
| Soggetto topico | Air - Pollution - Arizona - Grand Canyon National Park |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-280-21191-1
9786610211913 0-309-59608-4 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910456162003321 |
| Washington, D.C., : National Academy Press, 1990 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Haze in the Grand Canyon : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council
| Haze in the Grand Canyon : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council |
| Pubbl/distr/stampa | Washington, D.C., : National Academy Press, 1990 |
| Descrizione fisica | 1 online resource (x, 97 pages) : illustrations |
| Altri autori (Persone) | DuceRobert A. <1935-> |
| Soggetto topico | Air - Pollution - Arizona - Grand Canyon National Park |
| ISBN |
1-280-21191-1
9786610211913 0-309-59608-4 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910780005303321 |
| Washington, D.C., : National Academy Press, 1990 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Haze in the Grand Canyon : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council
| Haze in the Grand Canyon : an evaluation of the winter haze intensive tracer experiment / / Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Board on Atmospheric Sciences and Climate, Commission on Geosciences, Environment, and Resources, National Research Council |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Washington, D.C., : National Academy Press, 1990 |
| Descrizione fisica | 1 online resource (x, 97 pages) : illustrations |
| Disciplina | 628.530979132 |
| Altri autori (Persone) | DuceRobert A. <1935-> |
| Soggetto topico | Air - Pollution - Arizona - Grand Canyon National Park |
| ISBN |
1-280-21191-1
9786610211913 0-309-59608-4 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Haze in the Grand Canyon -- Copyright -- Preface -- Contents -- Executive Summary -- BACKGROUND -- THE NATIONAL RESEARCH COUNCIL STUDY -- QUALITATIVE ASSESSMENT -- QUANTITATIVE ASSESSMENT -- ESTIMATES OF THE RANGE OF POSSIBLE IMPACTS FROM NGS -- THE COMMITTEE'S CONCLUSIONS IN PERSPECTIVE -- Haze in the Grand Canyon -- Haze in the Grand Canyon: An Evaluation of the Winter Haze Intensive Tracer Experiment -- BACKGROUND -- THE NRC COMMITTEE STUDY -- The Committee, Its Charge, and Its Approach -- The Committee's Specific Interpretation of Its Charge -- EVALUATION OF WHITEX -- Whitex Overview -- WHITEX SOURCE-ATTRIBUTION MODELS -- CRITICAL ASPECTS OF WHITEX TECHNIQUES AND DESIGN -- Qualitative Assessment -- Meteorological Evidence -- Photographic Evidence -- Chemical and Physical Evidence -- Quantitative Assessment -- LIMITATIONS OF THE WHITEX STUDY -- Weaknesses in the Data Base -- Uncertainties about Tracer Data -- Absence of Measurements within the Grand Canyon -- Inadequacy of Background Measurements -- Departures from Statistical Assumptions -- Formulation of Statistical Models -- Simplifications in the DMB Model -- Potential Covariance of NGS and Other Source Contributions -- Estimates of the Range of Possible Impacts of NGS Emissions at Hopi Point -- Minimum Conversion of SO2 to -- Maximum Conversion of SO2 to -- THE COMMITTEE'S CONCLUSIONS IN PERSPECTIVE -- CONCLUSIONS -- References -- Appendices -- Appendix 1: Nature of the Visibility Problem -- Contents -- Chapter 1 Introduction -- 1.1 Overview -- 1.2 Background -- 1.3 Study Plan -- 1.4 Interrelationships Between Aerosol, Optical and Visibility Apportionment -- 1.5 Measurement Program -- 1.6 Report Outline -- References -- Chapter 9 Conclusions -- 9.1 Introduction -- 9.2 Climatology of the Area -- 9.3 Light Extinction Budget -- 9.4 Attribution of Regional Sulfur and Visibility Impairment.
9.4.1 Emissions Analysis -- 9.4.2 Trajectory and Streakline Analysis -- 9.4.3 Spatial and Temporal Trends in Ambient Concentrations -- 9.4.4 Deterministic Wind Field Modeling -- 9.4.5 Tracer Mass Balance Regression (TMBR) Analysis -- 9.4.6 Differential Mass Balance (DMB) Analysis -- 9.4.7 Attribution of Visibility -- 9.4.8 Synthesis -- 3.2 CD4 Tracer Injection -- 3.3 Sample Collection -- Chemical Mass Balance With Unique Tracer -- Appendix 6B: Tracer Mass Balance Model Regression (TMBR) Model and Tracer Mass Balance (TMB) Model -- OVERVIEW -- MODEL EQUATIONS -- MODEL CALCULATIONS AND UNCERTAINTIES -- Model Assumptions -- Potential Deviations From Assumptions -- Effect of Nonconstant Regression Coefficients In The TMB Model -- MODEL INPUTS -- MODEL OUTPUTS -- Appendix 3: CD4 As An Air-Mass Tracer -- Appendix 4: Commission On Physical Sciences, Mathematics, And Resources -- STAFF. |
| Record Nr. | UNINA-9910826234603321 |
| Washington, D.C., : National Academy Press, 1990 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
