The document appears to be a log of timestamps for a file called "climatici2.gwb" on 31 separate occasions from December 25th to December 26th, with most of the timestamps on the 26th between 4:00pm and 10:00pm.
This document discusses proving triangle similarity using the AA similarity postulate. It states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. The document contains notes from a class on November 18th discussing this postulate and assigning homework problems from page 4 to page 20 that are even numbers and problems 26 through 28.
From linking to integration of energy system models and computational general...IEA-ETSAP
This document discusses different approaches to linking and integrating energy system models and computational general equilibrium (CGE) models. It finds that:
1. Hard-linking or integrating models to solve for a Nash equilibrium produces the same results, but integrating the models may be faster, solving all equations at once rather than iteratively.
2. Integrating the models as a mixed complementarity problem (MCP) and solving simultaneously finds the solution faster than hard-linking separately.
3. Integrating the models as a nonlinear program (NLP) is even faster, solving large problems with over 2,500 scenarios in just 7 minutes, compared to 10 hours and 10 minutes for other approaches.
The document summarizes a research project investigating the possible relationship between Lake Michigan ice cover in winter and stronger storms in spring. The researchers selected years with high and low ice coverage to analyze winter lake temperatures and spring storm reports. They found that years with more ice had colder lake temperatures and earlier/shorter severe storm seasons than years with less ice. However, the total number of storms was not significantly different between high and low ice years. The results suggest ice cover shifts the timing but not the overall frequency of spring storms near Lake Michigan.
This document discusses calculating the Gutenberg-Richter b value from earthquake magnitude-frequency data and common errors in doing so. It notes that the b value should be calculated using maximum likelihood estimation rather than least squares fitting, and that the data set needs to be large (>2000 earthquakes) and include only quakes above the catalog completeness threshold. While b values may vary some with location, the author finds no strong evidence that b varies significantly on or off major faults in California. An accurate b value is important for hazard analysis and understanding earthquake physics.
The document discusses earthquake occurrence and catalogs. It introduces the Gutenberg-Richter law which states that the number of earthquakes decreases exponentially with magnitude. Complete earthquake catalogs are desirable as they are homogeneous, complete, cover a long duration, and source material is available online. Stable continental regions have low seismicity that follows the Gutenberg-Richter relationship, with an earthquake of magnitude 6.5 expected once a decade for a particular region. Students are assigned homework to analyze earthquake data from Saudi Arabia and establish the Gutenberg-Richter relationship for the region.
This document discusses forecasting weather in Boston using historical weather station data from 2008 to the present. ARIMA modeling is used to forecast future weather based on past trends and seasonal patterns in the data. Variables like temperature, dew point, humidity, visibility and precipitation are identified and their (p,d,q) parameters determined. A regression model is built to forecast weather events based on these independent variables. The trained model will then be used to generate a 10-day weather forecast.
This document discusses proving triangle similarity using the AA similarity postulate. It states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. The document contains notes from a class on November 18th discussing this postulate and assigning homework problems from page 4 to page 20 that are even numbers and problems 26 through 28.
From linking to integration of energy system models and computational general...IEA-ETSAP
This document discusses different approaches to linking and integrating energy system models and computational general equilibrium (CGE) models. It finds that:
1. Hard-linking or integrating models to solve for a Nash equilibrium produces the same results, but integrating the models may be faster, solving all equations at once rather than iteratively.
2. Integrating the models as a mixed complementarity problem (MCP) and solving simultaneously finds the solution faster than hard-linking separately.
3. Integrating the models as a nonlinear program (NLP) is even faster, solving large problems with over 2,500 scenarios in just 7 minutes, compared to 10 hours and 10 minutes for other approaches.
The document summarizes a research project investigating the possible relationship between Lake Michigan ice cover in winter and stronger storms in spring. The researchers selected years with high and low ice coverage to analyze winter lake temperatures and spring storm reports. They found that years with more ice had colder lake temperatures and earlier/shorter severe storm seasons than years with less ice. However, the total number of storms was not significantly different between high and low ice years. The results suggest ice cover shifts the timing but not the overall frequency of spring storms near Lake Michigan.
This document discusses calculating the Gutenberg-Richter b value from earthquake magnitude-frequency data and common errors in doing so. It notes that the b value should be calculated using maximum likelihood estimation rather than least squares fitting, and that the data set needs to be large (>2000 earthquakes) and include only quakes above the catalog completeness threshold. While b values may vary some with location, the author finds no strong evidence that b varies significantly on or off major faults in California. An accurate b value is important for hazard analysis and understanding earthquake physics.
The document discusses earthquake occurrence and catalogs. It introduces the Gutenberg-Richter law which states that the number of earthquakes decreases exponentially with magnitude. Complete earthquake catalogs are desirable as they are homogeneous, complete, cover a long duration, and source material is available online. Stable continental regions have low seismicity that follows the Gutenberg-Richter relationship, with an earthquake of magnitude 6.5 expected once a decade for a particular region. Students are assigned homework to analyze earthquake data from Saudi Arabia and establish the Gutenberg-Richter relationship for the region.
This document discusses forecasting weather in Boston using historical weather station data from 2008 to the present. ARIMA modeling is used to forecast future weather based on past trends and seasonal patterns in the data. Variables like temperature, dew point, humidity, visibility and precipitation are identified and their (p,d,q) parameters determined. A regression model is built to forecast weather events based on these independent variables. The trained model will then be used to generate a 10-day weather forecast.
Giornata di Studio dedicata alla Didattica Museale, organizzata con il contributo dell’Assessorato alle Politiche Culturali della Provincia di Cagliari, lunedì 29 aprile p.v. presso la Sala Polifunzionale di Monte Claro, della Provincia di Cagliari
Slide di un mio Seminario di 2 ore intitolato "L'Archeologia Sperimentale nelle scuole: applicazioni e novità", fatto con orgoglio al Museo Archeologico Regionale “Paolo Orsi” di Siracusa (giovedì 28 aprile 2010).
Giornata di Studio dedicata alla Didattica Museale, organizzata con il contributo dell’Assessorato alle Politiche Culturali della Provincia di Cagliari, lunedì 29 aprile p.v. presso la Sala Polifunzionale di Monte Claro, della Provincia di Cagliari
Slide di un mio Seminario di 2 ore intitolato "L'Archeologia Sperimentale nelle scuole: applicazioni e novità", fatto con orgoglio al Museo Archeologico Regionale “Paolo Orsi” di Siracusa (giovedì 28 aprile 2010).