Climate

Dates of average daily temperature transition of 5° C for the period of temperature decline .

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Authors:

Scientists - Afonin, A.N., Li, Y.S., Lipiyaynen, K.L., Tsepelev, V.Y.

Date of creation:

15.10.2005.

Scale:

10 km/pix

Accuracy of map:

Map contains dates of average daily temperature transition of 5° C for period of temperature decline, taken from patches of the Earth's surface with area of 10 x 10 km. Layer calculations based on average monthly air temperatures.

Projection:

"Alber.s Equal Area Conic for the USSR":
ref. system : Alber.s Equal Area Conic for Russia
projection : Alber.s Equal Area Conic
datum : Pulkovo 1942 (S42)
delta WGS84 : 28 -130 -95
ellipsoid : Krasovsky
major s-ax : 6378245.000
minor s-ax : 6356863.019
origin long : 100
origin lat : 0
origin X : 0
origin Y : 0
scale fac : na
units : m
parameters : 2
stand ln 1 : 44
stand ln 2 : 68

Basic contents:

Raster map contains dates of average daily temperature transition of 5° C for period of temperature decline.

Accuracy of classifier:

Transition dates expressed as number of days from beginning of year.

Method of map production:

Layer calculations based on average monthly air temperatures (Afonin, A.N., Lipiyaynen, K.L., Tsepelev, V.Y., 2006). The calculation follows the general procedure (Losev, А.P., 1994) in the Idrisi program resorting to macro programming. "0" stands for the absence of the transition date. "-100" marks the pixels outside the Atlas.

Reference citations:

Afonin, A.N., Lipiyaynen, K.L., Tsepelev, V.Y. (St Petersburg State University, Faculty of Geography, St Petersburg, Russia) Maps of average annual air temperature. In: Afonin, А.N.; Greene, S.L.; Dzyubenko, N.I.; Frolov, А.N. Ecological Atlas of Russia and Neighboring Countries: Economic Plants and their Diseases, Pests and Weeds. [Internet-version 1.0]. St Petersburg, Russia. St Petersburg State University, Faculty of Geography. 2006, Jan. https://agroatlas.ru.
Losev, А.P. Training for Agrometeorological Provision for Plant Cultivation St Petersburg: 1994. 244 p. (in Russian).