What Are the Different Global Warming Predictions?

In June 2015, NASA released forecasts of changes in global temperature and precipitation until 2100. The global climate change forecast map for 2100 is the result of calculation of the rising trend of greenhouse gas concentrations in the global atmosphere. ^[1]

Global Climate Change Forecast for 2100

All of the data used in the global climate change forecast map research in 2100 are publicly available public data, and simulation calculations are performed based on 21 climate models, reflecting the different regions of the world that will be produced under different conditions of carbon dioxide emissions. result. The high-resolution results obtained from these data will allow people to query the daily calculations of each individual city or town, thereby helping scientists and decision makers better understand the risks that exist locally and globally, such as severe droughts and floods. , Heat waves, and decline in agricultural output.

This NASA data set combines measured data from around the world with forecast data derived from simulations using climate models, the latter provided by the international cooperation project "Five Coupling Model Comparison Program". These climate simulations used the best physical model of the climate system currently available, and calculated the future trend of the global climate under two different types of greenhouse gas emission models. The two types of greenhouse gas emission models are: "as always" emission models based on current emission levels, and "extreme" emission models that assume that future greenhouse gas emissions will increase substantially on the existing basis.

The NASA database released this time can measure the future changes in temperature and precipitation around the world with a spatial resolution of about 15 kilometers, covering the period from 1950 to 2100. This 11TB database also provides daily maximum and minimum temperature and precipitation data across the globe.

NEX is a collaboration and analysis platform that combines the latest supercomputing technology, Earth system models, workflow management, and NASA remote sensing data. With NEX, users can explore and analyze large amounts of earth science data, run and share various models, algorithms, and workflows, collaborate on newly created or existing projects, and conduct research in their own scientific field or with other scientific fields Exchange work flow or measurement results.

For the data and analysis tools of NEX, the general public can operate through the Amazon Web Server and the OpenNEX project. OpenNEX is a cooperative project between NASA and Amazon.com, which aims to help ordinary people more easily use meteorological data and support the United States and the international community's ability to respond to climate change. OpenNEX is actually an extended version of NASA's NEX program in a public cloud computing environment.

NASA is constantly committed to using its strengths in space observation to enhance our understanding of the planet we live in, improve people's lives and safeguard our future. NASA continuously develops new types of earth observation and research technologies, uses long-term recorded data to study the natural systems that blend with each other on the planet, and shares its unique knowledge with the world at no cost, and cooperates with research institutions around the world to continuously obtain information about what is happening on the planet. New understanding of change.

NASA Chief Scientist Ellen Stofan said: "NASA is using the data we get from space technology to produce new products that help us all better secure our future. With this With a new global dataset, people around the world will have a valuable new tool to help address the challenges of global warming. "

This new data set is the latest achievement under NASA's Earth Exchange (NEX) project. This is a big data research project based on NASA's California Ames Research Center (ARC) Advanced Supercomputing Center. In 2013, the NEX project released a similar global change forecast map covering the continental United States, which can be used to assess the potential climate risk conditions facing agriculture, forests, rivers and cities across the United States.

Ramakrishna Nemani is a scientist participating in the NEX project at NASA's Ames Research Center. He said: "This is a basic database in the area of climate research and assessment and will have a wide range of applications. NASA is continuously producing precious community-based data products based on the NEX platform to promote scientific cooperation, knowledge sharing and Research and development work. " ^[1]