Reseña del libro "The Calibrated Earth (en Inglés)"
Could an engineered shadow influence clouds, rainfall, storms—or the wider climate system?In The Calibrated Earth, Manoj Kumar Nalanagula explores Artificial Solar Eclipse Shadowing (ASES): a proposal to reduce incoming sunlight over a specified area for a defined period. Beginning with the solar eclipse he witnessed in Rayagada, India, in 1995, the book follows a persistent question: what might happen if the temporary shadow of a natural eclipse could be deliberately created and sustained?The inquiry connects solar radiation with the processes that shape our atmosphere and oceans. Surface heating, moisture, turbulence, cloud formation, winds and ocean mixing all influence how Earth responds to changes in sunlight. Understanding those interactions is central to assessing whether an artificial shadow could produce a useful effect—and what unintended consequences might follow.Within these pages, readers explore:The origins and development of ASES, including the author’s eclipse-related proposal of 2017 and shadowing proposal of 2023.How a shadow’s location, geometry, opacity, altitude and duration could define an experimental change in solar input.Why cooling alone does not guarantee clouds or rain, and why reduced surface heating may weaken convection.Research questions involving rainfall, tropical cyclones, El Niño, ocean overturning and ice preservation.The energy budgets, engineering demands, coupled models and observations needed to assess feasibility.The potential role of artificial intelligence in analysing observations, comparing models and supporting decisions within defined limits.Alongside the scientific discussion, Nalanagula recounts his meeting with Dr. A. P. J. Abdul Kalam in 1998 and the encouragement and assistance he received from Rear Admiral S. Mohapatra while developing his early thinking at the Naval Science and Technological Laboratory during 2003–2005. These personal experiences form part of the journey from youthful curiosity to a structured research proposal.Throughout, established physical principles are distinguished from hypotheses that remain to be tested. Numerical examples illustrate energy and scale; proposed applications require independent validation. The book asks what evidence would support the idea, what findings might challenge it, and how its assumptions should change as understanding advances.Written for readers interested in climate science, atmospheric processes, emerging engineering ideas and the responsible use of AI, The Calibrated Earth offers an invitation to examine an ambitious proposal with both imagination and scientific discipline.A journey from a remembered eclipse to questions that can be measured, modelled and tested. Read more
