ESTIMATION OF RETURN PERIODS AND CONFIDENCE INTERVALS OF THE EFFECTIVE RAINFALL FOR RICE CULTIVATION IN THE MAZANDARAN PLAIN

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MOJARAD F.; NASIRIS SH.

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Journal: MODARRES HUMAN SCIENCES Year:2006 | Volume:10 | Issue:2 (TOME 45) Page(s): 159-181

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Title

ESTIMATION OF RETURN PERIODS AND CONFIDENCE INTERVALS OF THE EFFECTIVE RAINFALL FOR RICE CULTIVATION IN THE MAZANDARAN PLAIN

Author(s)

MOJARAD F. | NASIRIS SH. | Issue Writer Certificate

Keywords

EFFECTIVE RAINFALLQ3

RETURN PERIODQ1

CONFIDENCE INTERVALQ3

RICEQ2

MAZANDARAN PLAINQ3

Abstract

The EFFECTIVE RAINFALL amounts (ER) as a part of the irrigation requirement were estimated for the premature and serotinous varieties of RICE in the MAZANDARAN PLAIN, using different methods. Finally the "Dependable Rain" method was selected for the estimation. Comparison of the maps reveals that the ER amounts are more in the western part of the plain than the eastern part; consequently, the net irrigation requirement is low in the western part. Since knowing the minimum and maximum values of the ER with specific confidence, helps the planners in making different decisions, the ER amounts were estimated at 90, 95 and 99 percent CONFIDENCE INTERVALs. The related maps show that the confidence for ER amounts is low for both premature and serotinous varieties in the eastern part, while the ER amounts are almost 50 millimeters more for serotinous variety than premature variety at different CONFIDENCE INTERVALs in the whole region. Also, the maps of RETURN PERIODs show that the ER amounts are higher in the western and central parts than the eastern part and that the accessibility of ER varies from lower than 80 to more than 420 millimeters in the growing season in terms of various RETURN PERIODs and different parts of the region.

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APA: Copy

MOJARAD, F., & NASIRIS, SH.. (2006). ESTIMATION OF RETURN PERIODS AND CONFIDENCE INTERVALS OF THE EFFECTIVE RAINFALL FOR RICE CULTIVATION IN THE MAZANDARAN PLAIN. MODARRES HUMAN SCIENCES, 10(2 (TOME 45)), 159-181. SID. https://sid.ir/paper/6798/en

Vancouver: Copy

MOJARAD F., NASIRIS SH.. ESTIMATION OF RETURN PERIODS AND CONFIDENCE INTERVALS OF THE EFFECTIVE RAINFALL FOR RICE CULTIVATION IN THE MAZANDARAN PLAIN. MODARRES HUMAN SCIENCES[Internet]. 2006;10(2 (TOME 45)):159-181. Available from: https://sid.ir/paper/6798/en

IEEE: Copy

F. MOJARAD, and SH. NASIRIS, “ESTIMATION OF RETURN PERIODS AND CONFIDENCE INTERVALS OF THE EFFECTIVE RAINFALL FOR RICE CULTIVATION IN THE MAZANDARAN PLAIN,” MODARRES HUMAN SCIENCES, vol. 10, no. 2 (TOME 45), pp. 159–181, 2006, [Online]. Available: https://sid.ir/paper/6798/en

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