AN INVESTIGATION ON THE FEASIBILITY OF APPLYING MODIS SNOW COVERPRODUCTS IN CLOUDY WEATHER BY THE EMPLOYMENT OF ITS INTEGRATION WITHMICROWAVE IMAGES

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FAYAZ NIMA; VAZIFEDOUST MAJID; ARAGHINEJAD SHAHAB

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Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2015 | Volume:15 | Issue:37 Page(s): 0-0

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Title

AN INVESTIGATION ON THE FEASIBILITY OF APPLYING MODIS SNOW COVERPRODUCTS IN CLOUDY WEATHER BY THE EMPLOYMENT OF ITS INTEGRATION WITHMICROWAVE IMAGES

Author(s)

FAYAZ NIMA | VAZIFEDOUST MAJID | ARAGHINEJAD SHAHAB | Issue Writer Certificate

Keywords

MODISQ2

SNOW COVERED AREAQ1

AMSRQ2

EQ2

MICROWAVEQ2

KAROUNQ2

IRANQ2

Abstract

Variation of snow cover area (SCA) in small to large scale catchment can bestudied using MODIS snow products on daily to monthly time step since theyear 2000. However, one of the major problems in applying the MODIS snowproducts is cloud obscuration which limits the utilization of these products. Inthe current study, variation of SCA was investigated in KAROUN basin, westernpart of IRAN, using MODIS 8-day snow cover product (MOD10A2). More overin order to overcome the cloud barrier in application of snow cover products, asimultaneous employment of the images from both MODIS optical sensor andAMSR-E MICROWAVE sensor was recommended. Meeting our target, thecombination of MODIS and AMSR-E daily images was exercised to accomplishsnow cover area in daily interval and afterwards, a comparison was madebetween the result and those which had been obtained by the sole utilization ofeither of them while the weather had been either cloudy and not been overcast. Validation of snow cover gained by combined images was additionallycompared with the discharge of one of the catchments existing in KAROUN basin. The results demonstrate that regardless of the fact that MICROWAVE data, featuringa coarse spatial resolution, can penetrate the cloud cover, on average, AMSR-Eimages approximately show 16% more snow cover in comparison to MODISimages. The results also illustrate that the correlation existing between snowcover rate of AMSR-E and MODIS images during cloudless days, the differenceof average snow cover area decreases from 16% to 5%. Moreover, the upshot ofvalidation by the exercise of daily discharge data indicates that by possessing acorrelation coefficient of 0. 66, the correlation of snow cover and discharge incombined images features a higher accuracy in comparison to MODIS imageswith a correlation coefficient of 0. 55.

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APA: Copy

FAYAZ, NIMA, VAZIFEDOUST, MAJID, & ARAGHINEJAD, SHAHAB. (2015). AN INVESTIGATION ON THE FEASIBILITY OF APPLYING MODIS SNOW COVERPRODUCTS IN CLOUDY WEATHER BY THE EMPLOYMENT OF ITS INTEGRATION WITHMICROWAVE IMAGES. JOURNAL OF GEOGRAPHICAL SCIENCES, 15(37 ), 0-0. SID. https://sid.ir/paper/366954/en

Vancouver: Copy

FAYAZ NIMA, VAZIFEDOUST MAJID, ARAGHINEJAD SHAHAB. AN INVESTIGATION ON THE FEASIBILITY OF APPLYING MODIS SNOW COVERPRODUCTS IN CLOUDY WEATHER BY THE EMPLOYMENT OF ITS INTEGRATION WITHMICROWAVE IMAGES. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2015;15(37 ):0-0. Available from: https://sid.ir/paper/366954/en

IEEE: Copy

NIMA FAYAZ, MAJID VAZIFEDOUST, and SHAHAB ARAGHINEJAD, “AN INVESTIGATION ON THE FEASIBILITY OF APPLYING MODIS SNOW COVERPRODUCTS IN CLOUDY WEATHER BY THE EMPLOYMENT OF ITS INTEGRATION WITHMICROWAVE IMAGES,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 15, no. 37 , pp. 0–0, 2015, [Online]. Available: https://sid.ir/paper/366954/en

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