Vladimir Köppen


Köppen’s work is least known or acknowledged, yet it includes important concepts for understanding climate and climate change. In my opinion, it is more important than the IPCC and most modern climate research because it recognizes the importance of water in all its forms. He produced a system in 1884 that named, ranked, and classified climates on the distribution of plants.

Köppen created a system based on average annual precipitation, average monthly temperature and average monthly precipitation. He identified six major divisions.

A. Tropical Humid

B. Dry

C. Mild mid-latitude

D. Severe Mid-latitude

E. Polar

H. Highland (added later).

B classification is the only one initially determined by annual precipitation. It is also the first one determined; if it is not a B climate, then it is one of the other classifications. The amount of precipitation must be sufficient to support trees. Thus, a desert is not defined by temperature, but by the lack of vegetation. Koppen recognized another important issue called the effectiveness of precipitation.

A portion of rainfall is evaporated, what remains goes into the ground and is available for the plants. Köppen defined what was effective, that is the water available for the plants, by identifying three different annual patterns: rainfall year round, 70% in the summer, or 70% in the winter. Each may have the same annual total, but the amount left for the plants varies considerably.

Köppen, Wegener, and Milankovitch did more to help us understand the world and its dynamic systems than most, yet they are virtually unknown. They operated in a world arguably more open to ideas and innovation than today. We have suppression, repression and control of ideas in education systems used to indoctrinate and keep people ill-informed or misinformed. They were young men when they brought forward their ideas. In their day, the young scholars challenged the prevailing wisdoms of the older scholars. Now, the young arrive at university with the prevailing wisdoms and it is the old professors who are the skeptics. Sadly, the skeptic community just experienced the passing at age 92 of Professor William Gray, a giant champion for truth and open science.

There is also the arrogance that we are smarter. This creates the standard confusion in society and therefore education, between knowledge and intelligence. We assume because people didn’t know something they lacked intelligence. We also assume that freedom of thought and ideas were repressed in the past. The recent attempts to prosecute climate deniers under racketeering laws exposes that myth. However, the biggest hindrance to advances in climate science and climatology since its inception in 1988 is the IPCC and the governments who accept their findings. They narrowed the focus to only human causes of climate change and reinforced that by funding only research that proved their views. They settled the science. One can only imagine the conversation over this state of affairs in the triumvirate of Köppen, Wegener, and Milankovitch.

Lähde: WUWT