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SFGTV2 February 9, 2011



those are plausible in colorado. the,y axis is number of years in which we get plugs out of records. 78 years. there are two things to catch from this. one, is first of all, the vulnerability of the relative moderate increase of flow in the colorado. a ten percent increase in flow. changes the number of years with uncontrolled spills, floods, from six out of 78 in the data case to 16 out of 78 years some more than doubles the ten percent increase, more than doubles the years you have uncontrolled spills and different colors, blue is little spills and most are red the big ones. sorry the smaller one. you don t get really big spills undercurrent conditions. but when a 20 percent increase in flow your getting more inflows. the system is sincetive to climate. the second important point here is, this whole project. assessing the risk, assuming we operate the system the same way thomas we operating today, we were told when we proposed the project we could not change the opera ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 February 2, 2011



of uncontrolled spills which is basically meaning floods. these are percent changes of flow on,x factors. 10, five, ten, twenty percent changes on flows. those are plausible in colorado. the,y axis is number of years in which we get plugs out of records. 78 years. there are two things to catch from this. one, is first of all, the vulnerability of the relative moderate increase of flow in the colorado. a ten percent increase in flow. changes the number of years with uncontrolled spills, floods, from six out of 78 in the data case to 16 out of 78 years some more than doubles the ten percent increase, more than doubles the years you have uncontrolled spills and different colors, blue is little spills and most are red the big ones. sorry the smaller one. you don t get really big spills undercurrent conditions. but when a 20 percent increase in flow your getting more inflows. the system is sincetive to climate. the second important point here is, this whole project. assessin ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 January 26, 2011



operating rules that reservoirs and could not change water rights and change the rule of the law of the river, basically. we had to do assessment of the water vulnerability in current conditions. that s a key point. how vulnerable are we - not under existing conditions although this is important information to know - but how vulnerable would be be if we had the flexibility to change the way we operate and that s a we question. and that races something more important than science and that s politics. next slide. what shouldn t be done? don t assume future climate will look like the past. actually i ll say it one more time on the conclusion. do not justify actions using climate change without the science to support them unless their justified for other reasons. i m going to poke a bear here - a big bear - but he s not in the room so can t kick me out. the governor proposed two new surface reservoirs in california and the large part of the back up justification was issue o ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 January 12, 2011



the,y axis is number of years in which we get plugs out of records. 78 years. there are two things to catch from this. one, is first of all, the vulnerability of the relative moderate increase of flow in the colorado. a ten percent increase in flow. changes the number of years with uncontrolled spills, floods, from six out of 78 in the data case to 16 out of 78 years some more than doubles the ten percent increase, more than doubles the years you have uncontrolled spills and different colors, blue is little spills and most are red the big ones. sorry the smaller one. you don t get really big spills undercurrent conditions. but when a 20 percent increase in flow your getting more inflows. the system is sincetive to climate. the second important point here is, this whole project. assessing the risk, assuming we operate the system the same way thomas we operating today, we were told when we proposed the project we could not change the operating rules that reservoirs and co ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 January 5, 2011



the demand for water. it has been mentioned a couple of times here. seattle may have done that and port land may have integrated it into management. temperature is going up, demand for water is going up. how many of our water agencies include in their demand forecast for the year 3020, 3050, climate effects on demand. the last california water plant did a much better job of acknowledging the issue of climate change but not yet adequately took action. we re beginning to work now on the next one and the intention i believe, is there will be a more deeper analysis and i look forward to that. next slide. this is a graph, and i want to say couple of things. this is from a study that a coleague of mine did on impacts of changes on colorado river. we looked at climate general circulation models from hypo thetic there s a lot of information and this is a small piece of that. this shows frequency and volume of uncontrolled spills which is basically meaning floods. these are perc ....

United States , Santa Clara Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,