NASA Analyzes US Midwest Heavy Rainfall, Severe Storms

Heavy rain resulted in significant flooding in the U.S. Midwest over the week of July 7 to 14, 2017. Using satellite data, NASA estimated the amount of rain that fell over those areas and used satellite data to create 3-D imagery of severe storms.

NASA's Integrated Multi-satellite Retrievals for GPM (IMERG) data were used to show estimates of rainfall accumulation in the Midwest during the period from July 7 to 14, 2017. The analysis was conducted at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and indicates that parts of Wisconsin, Illinois, Indiana and Ohio had the highest rainfall totals during the period with more than 6 inches (152.4 mm) of rain being seen in many areas.

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Bangladesh's Heavy Rainfall Examined With NASA's IMERG

At least 156 people in Bangladesh were killed during the past week by landslides and floods caused by heavy rainfall. NASA calculated the amount of rain that has fallen using data from satellites.

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Hydroclimate: Understanding rainfall extremes

Warming induced by greenhouse gases will increase the amount of moisture in the atmosphere, causing heavier rainfall events. Changing atmospheric circulation dynamics are now shown to either amplify or weaken regional increases, contributing to uncertainty in future precipitation extremes.

Nature Climate Change doi: 10.1038/nclimate3305


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NASA Examines Peru's Deadly Rainfall

The Global Precipitation Measurement mission or GPM constellation of satellites provide data on precipitation rates and totals. Recently the GPM core observatory measured the heavy rainfall that caused extensive flooding and loss of life in Peru.

Extreme flooding and frequent landslides that occurred in March have forced many from their homes. An El Niño-like condition with warm ocean waters developed near Peru's coast. This extremely warm water off Peru's western coast has been blamed for promoting the development of these storms. Equatorial sea surface temperatures (SSTs) are about average elsewhere in the central and east central Pacific.

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Biosphere–atmosphere interactions: Deforestation size influences rainfall

Changes to the land surface, such as land clearing and logging of forest areas, impacts moisture cycling. Now a shift from small-scale to large-scale deforestation in the southern Amazon is found to modify the mechanisms and patterns of regional precipitation.

Nature Climate Change doi: 10.1038/nclimate3238


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NASA Examines Ex-Tropical Cyclone Dineo's Rainfall

Late on Feb. 15, Dineo made landfall in southern Mozambique. By Feb. 17 the storm weakened to a remnant low pressure area when NASA's Terra satellite passed overhead. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard Terra captured a visible image that showed the center of the low pressure area over Zimbabwe and clouds extended over found Dineo's clouds stretched over southern Mozambique, Swaziland, eastern Botswana and northeastern South Africa.

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NASA Analyzes Heavy Rainfall Over Southern Thailand

Widespread flooding has recently caused the deaths of dozens of people in southern Thailand. Frequent and persistent downpours have resulted in record rainfall totals and NASA calculated rainfall over the region from January 5 to January 12, 2017.

The Global Precipitation Measurement mission or GPM core satellite is part of a constellation of satellites that can measure rainfall from space. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency and the data is input into NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) data product.

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Impacts of changing rainfall regime on the demography of tropical birds

Increasing dry season length in central Panama reduced population growth rates and viability in nearly one-third of the 20 tropical bird species investigated. Such changes are projected to alter tropical bird community structure in protected areas.

Nature Climate Change doi: 10.1038/nclimate3183


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How Solar power is bringing food security to Africa

Malawi is a country on the front line of climate change. Unlike nations ravaged by a typhoon or rich western cities swamped with floodwater, the kind of impacts Malawians face barely raise a flicker of interest in the media. Compared to a hurricane, a few degrees of temperature rise and shifting rainfall patterns sound mild, but in reality they have the potential to be far more devastating writes JOE WARE
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The Ecologist

Hydrology: What brings rain to the Sahel?

The Sahel has suffered through severe droughts but recent years have seen increased rainfall. Now research suggests warming of the Mediterranean Sea surface may dictate future rainfall in the region.

Nature Climate Change doi: 10.1038/nclimate3080


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