Coral Reef Watch Homepage and Near-Real-Time Product Portal Coral Reef Watch Satellite Monitoring NOAA's Coral Reef Watch Program's satellite data provide current reef environmental conditions to quickly identify areas at risk for coral bleaching , where corals lose the symbiotic algae that give them their distinctive colors. If a coral is severely bleached, disease and partial mortality become likely, and the entire colony may die. Continuous monitoring of sea surface temperature at global scales provides researchers and stakeholders with tools to understand and better manage the complex interactions leading to coral bleaching. The Coral Reef Watch mission is to utilize remote sensing and in situ tools for near-real-time and long term monitoring, modeling and reporting of physical environmental conditions of coral reef ecosystems. Coral Reef Watch is part of the NOAA Coral Reef Conservation Program (CRCP) and the National Environmental Satellite Data and Information Service (NESDIS).
Satellite Events Art Gallery: Cyclones Satellite Gallery / Extratropical Cyclones / Perfect Storm 1991 / SAA / Help An enormous extratropical low is creating havoc along the entire Eastern Atlantic Seaboard in this infrared image at 1200 UTC (0700 EST) on October 30, 1991. Labelled the "perfect storm" by the National Weather Service, the storm sank the swordfishing boat Andrea Gail, whose story became the basis for the currently best-selling novel "The Perfect Storm" by Sebastian Junger. Event Discussion The Perfect Storm Conditions at the Time of the Image The color-enhanced infrared image of 1200 UTC October 30, 1991 depicts a monster storm off the Eastern Seaboard, which was described by the National Weather Service as the "perfect storm." History of the Storm Late October and November are months with weather in rapid transition in the eastern U.S. On October 28, 1991, a extratropical cyclone developed along a cold front which had moved off the Northeast coast of the U.S. 65 Knot Winds/ 39 Foot Wave Heights Top of Page
6(c). Energy, Temperature, and Heat So far we have learned that energy can take on many forms. One important form of energy, relative to life on Earth, is kinetic energy. Simply defined, kinetic energy is the energy of motion. Kinetic energy is also related to the concept of temperature. Some other important definitions related to energy, temperature, and heat are: Heat Capacity - is the amount of heat energy absorbed by a substance associated to its corresponding temperature increase. Figure 6c-1: Latent heat exchanges of energy involved with the phase changes of water. Figures 6c-2 and 6c-3 show the net absorption and release of latent heat energy for the Earth's surface for January and July, respectively.
NASA Earth Observatory : Home Weather Forecast - Haverhill, MA - Local & Long Range Weather Underground Forecast for Sunday, April 13, 2014 A cold frontal boundary will extend across the Great Basin, the Intermountain West, the central Plains and the upper Midwest on Sunday, while a ridge of high pressure will build over the eastern Pacific. A low pressure system is forecast to develop to the lee of the Rockies over the central Plains on Sunday. This system will interact with a warm, muggy air mass from the Gulf of Mexico, bringing strong to severe thunderstorms to the central third of the country. Severe thunderstorms will be possible over a handful of states, including Texas, Oklahoma, Louisiana, Arkansas, Kansas and Missouri, bringing a chance of flash floods to the middle and upper Mississippi Valley. A separate wave of low pressure will inch across the Great Basin and the Intermountain West on Sunday, as a mixture of rain and snow is expected over the Rockies. High pressure over the eastern Pacific will keep conditions mostly clear across the West Coast.
Empirical evidence for a recent slowdown in irrigation-induced cooling -- Bonfils and Lobell 104 (34): 13582 -- Proceedings of the National Academy of Sciences Rapid changes in land use, including deforestation, urbanization, and irrigation, are widely acknowledged to influence regional scale climate (1–4). Urban areas occupy ≈2% of the Earth's land surface (5), and considerable efforts have been devoted to estimating the contribution of urbanization to observed warming in certain regions (6). In contrast, although ≈2% of global land surface is irrigated [≈17% of the 15 × 106 km2 of world's agricultural land (7)], the role of irrigation in observed temperature trends has been less a subject of investigation. Because the surface cooling that accompanies evaporation of irrigation water seems negligible in comparison with global greenhouse warming, and because the positive radiative forcing associated with the increase in water vapor is small (8), influences of irrigation are often ignored in climate projections and often neglected in the process of detecting human-induced climate change (9). Observed Irrigation and Temperature Time Series.
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