Bright Stars Temecula Valley (home)
The science of climatology is well founded in astronomy. To the right are illustrations and presentations that reside in the overlap between these fields.
Below is a graph showing Earth's orbit parameters, incident solar radiation at a few latitudes, levels of the greenhouse gases CO2 and CH4, and temperatures relative to a 1970-2000 baseline. Click the range bars (in white) on the timeline or drag the sliders to examine time periods.Click any graph to bring it to the front. Hover over a data point to read its value. Click a vertical scale marker (when displayed) to pin it; click again to remove it. (See bottom of page for revision notes.
Requests and comments can be made at brightstarsWildomar, Vostok Graph)
Revision 3/12/2011: Added x-y markers for any data point. Click a datapoint to display the marker; click again to hide it. You can use these markers to compare y-axis values of data that do not fit within a field of view. E.g., you can zoom in on Holocene (past 10kyr) values while having a y-value of an Eemian (115-125kya) datapoint displayed. In case the new version has bugs, the previous version is still available here: climate_old
Revision 2/17/11: Horizontal markers indicating the vertical axis values can be pinned: Mouse over a scale marker to show the horizontal bar, then click the bar or the label. It's a little finicky, but if you click the numerical value displayed on the scale, it's bar displays on and off.
Revision 1/21/11: The graphs can be displayed right to left (palaeoclimate standard) or left to right (common expectation). I added the Law Dome CO2 values up to 1950.
Revision 12/29/10: Extended range of viewer to 740 kya to show show full extend of EPICA temperatures. Orbital parameters go back to 500 kya (and will be extended soon).
Revision 12/22/10: Added Deuterium measurements from GISP2 (Greenland) and EPICA (Antarctica). Values shown are ratios of deuterium to hydrogen that reflect temperature changes.
Revisions: 12/20/10 (version 2, beta): Added labels (right), scale indicators (left) and a tool for adjusting the y-scale scale and offset. NOTE: the scale indicators overlap, so use check boxes in the graph labels to show or hide a scale. To scale a graph, select it first (click it's label) and then click the triangle in the orange bar at the bottom of the graph. Warning: if you scale one graph, others using the same unit do NOT get scaled. E.g, if you want to rescale all insolation graphs, you would have to scale each individually.
Revisions: 12/11/10: added mean annual insolation to examine whether total solar energy intercepted by Earth changes over the span of this graph.
Pending revisions: add labels and clean up formating of datapoint information; fixing the false line drawn from the origin to the first plotted point; add adjustable scaling of y axis; allow juxtapositioning of data from different timespans;
Revisions under consideration: provide a view of global energy budget affected by levels or greenhouse gases and albedo ("under consideration" is a euphanism for "still figuring out how").