NASA reports, “Heat stored in the ocean causes its water to expand, which is responsible for one-third to one-half of global sea level rise.” But beyond that, as oceans warm, their waters expand, speeding sea level rise. Not only are these ocean’s ecosystems impacted (important because, among the myriad reasons that’s important, is the fact the world’s ocean are a source of food for 3 billion people). (See this VOX article on what’s happening in the North Atlantic: …/atlantic-ocean-record-heat-wave…)ĩ0% of atmospheric warming ends up in the oceans‚ and the oceans of our planet cover more than 70% of its surface. And what’s going on right now in terms of heating across the North Atlantic-and across the planet’s oceans as whole–has researchers talking and concerned. When oceans warm, dramatic changes occur, say scientists. MARINE “HEAT WAVE” IN THE NORTH ATLANTIC OFF THE IRELAND AND THE UK AMONG THE MOST DRAMATIC CURRENT SIGNS OF OCEAN WARMING WHICH IS WIDESPREAD It will be interesting to see how subsequent projections handle the critically short moisture situation. One area can end up drenched and another close-by left to watch the rains pass by. It’s tough to address moisture shortfalls with warm season rains because they can fall VERY UNEVENLY. If these rains actually materialized, that would be nice.īut remember, as mentioned here often. But lets see how the actual precip patterns end up working out in those longer time ranges. This may be on factor contributing to the tendency of computer rainfall projections to be OVERDONE in drought. When soil moistures true, there is less moisture fed back to the atmosphere. But computer rainfall projections Tuesday began indicating the potential for rainfall potentially closer to normal in the 1 to 2 week time range The first of those showers and t-storms could come as humidities surge and a cold front approaches and ultimately passes Sunday into Monday.įurther, estimates of rainfall off models came in around 105% normal for the Chicago area in the 6 to 10 and 96% in the 11 to 15 day time range. Some t-storms due Sunday/Monday with hints off models of closer to normal rainfall in the 6 to 10 and 11 to 15 day time frameĬomputer models often OVER FORECAST RAIN in drought situations–so the following will have to be monitored. Lake breezes to restrain work week heating-but weekend could see heat joined by humidity and more localized lake breezes. layer at the bottom of the atmosphere and over lakeshore areas, including the city of Chicago. Ozone is a lung irritant which is among the pollutants which is “trapped” in the 2,000 ft. Warm season sunlight goes to work on fossil fuel emissions catalyze a series of reactions which lead to OZONE PRODUCTION as a by product, particularly in the afternoons and evening. This essentially traps pollutants in that shallow layer of the atmosphere instead of allow it to “disperse” or “mix out”. With warm air aloft, the lake breeze cuts down on the vertical mixing of air when warmth aloft isn’t present. Studies have shown the cool layer of air which rides into the city with lake breezes is a bit over 2,000 feet deep. One additional factor becomes important to air quality this time of year–and that’s the persistence of cool lake breezes over the city. The area is still dealing with Canadian wildfire smoke aloft producing the “hazy look” we’ve been observing in the skies over the area. The failure of air to be refreshed by through movement of “cleaner” air into the area, leads to a build-up of particulates. Weather systems have been all but locked in place by a persistent REX BLOCK aloft.
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