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Changes in Radiation and Heat Budget of the Earth since the International Geophysical Year (IGY)

English title Changes in Radiation and Heat Budget of the Earth since the International Geophysical Year (IGY)
Applicant Ohmura Atsumu
Number 113242
Funding scheme Project funding (Div. I-III)
Research institution Institut für Atmosphäre und Klima ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Other disciplines of Environmental Sciences
Start/End 01.10.2006 - 30.04.2008
Approved amount 76'413.00
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Keywords (10)

Climate; Radiation; Energy Budget; GCM; Analysis; Cloud; energy balance; water vapour; greenhouse gas; climate change

Lay Summary (English)

Lay summary
The present proposal is aimed at concluding the on-going project that was initiated two years ago. Recent developments in observational techniques and computational capacities produced an unprecedented wealth of information on radiation and energy budget of the global climate system both for the top of the atmosphere (TOA) and for the earth's surface (BOS). We use this opportunity to tackle core issues in the heat budget of the earth. The objective of the present project is to investigate four major problems in the earth's energy balance at the earth’s surface by reconstructing the high-resolution energy budget for the earth's surface and its variations with time. Four major questions are 1) missing absorption; 2) greenhouse effect paradox; 3) direct evidence of the enhanced greenhouse effect, and 4) trend in evaporation. The project will use Re-analyses, satellite-based estimations, and the ground measurements.The expected product is not the traditional distributions of climatological mean fluxes, but the global distribution of fluxes for each month and each year during the 45 years, starting approximately in 1958.This period has the best quantity and quality of data on this subject, and covers major climatic events such as important volcanic eruptions (1963 Agung; 82 El Chichon; 91 Pinatubo), powerful El Nino and NAO events and the 25 year cooling in the middle of the 20th century followed by the rapid global warming.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants


Name Institute

Associated projects

Number Title Start Funding scheme
103484 Changes in Radiation and Heat Budget of the Earth since IGY 01.05.2004 Project funding (Div. I-III)