Cloud removal and optimal threshold selection of MODIS NDSI production
نویسندگان
چکیده
å½ä¸åå·®å¼ç§¯éªææ°NDSIï¼Normalized Difference Snow Indexï¼æ¯ç§¯éªè¯å«ä¸æ常ç¨çææ°ï¼ä½ç±äºäºçé®æ¡éå¶äºMODIS NDSI产åçåºç¨ãæ¬ææåºäºä¸ç§åºäºé»è¿ç¸ä¼¼åå çMODIS NDSI产åå»äºæ¹æ³ï¼å¹¶åæäºæ äºNDSIåºåå¨ç§¯éªè¯å«ä¸çæä¼éå¼ã对äºNDSIå½±åä¸æä¸ä¸ªäºé®æ¡çç®æ åå ï¼éåç®æ çn个é»è¿ç¸ä¼¼åå è¿è¡å æå¹³åæ¥é¢æµè¯¥ç®æ çNDSIå¼ã以ä¸å积éªåº2017å¹´10æ1æ¥â2018å¹´4æ31æ¥ä¸ä¸ªç§¯éªå£çNDSI产åè¿è¡å»äºå®éªï¼å¹¶éç¨âäºå设âçæ¹æ³è¿è¡äºæ£éªï¼æé¢æµå°çäºè¦çåå NDSIå¼ä¸å®é å¼çç¸å ³ç³»æ°è¾¾å°0.95ï¼åæ¹æ ¹è¯¯å·®ä¸º0.08ãå°éæ¥æ äºNDSIåºåä¸æ°è±¡ç«ç¹æµéçéªæ·±åºåè¿è¡å¯¹æ¯ï¼äºè å ·æå¾å¥½çä¸è´æ§ãæ°è±¡ç«ç¹çæµééªæ·±å¤§äºçäº1 cmæ¶ï¼åå®è¯¥ç«ç¹æå¨çåå 为æéªåå ï¼å¹¶ä»¥æ¤ä¸ºçå¼ï¼åææ äºNDSIåºåå¨ç§¯éªè¯å«ä¸çæä¼éå¼ãç»æ表æï¼é森æå°åºNDSIéå¼ä¸º0.1æ¶ç§¯éªæåç精度æé«ï¼å¯ä»¥è¾¾å°95.6%ï¼æ£®æå°åºçNDSIæä¼éå¼ä¸º0ï¼å¯¹åºç积éªæå精度为93.5%ã
منابع مشابه
Automatic Cloud Detection and Removal Algorithm for MODIS Remote Sensing Imagery
Cloud is one of the most common interferers in Moderate Resolution Imaging Spectrum-radiometer (MODIS) remote sensing imagery. Because of cloud interference, much important and useful information covered by cloud cannot be recovered well. How to detect and remove cloud from MODIS imagery is an important issue for wide application of remote sensing data. In general, cloud can be roughly divided ...
متن کاملstudy the effects of low level laser diode on no production and healing of diabetic and cortisone acetate and normal wounded sd rats
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
15 صفحه اولModis Observations of Deep Convective Cloud Tops
Past studies of the NOAA AVHRR/2 and GOES I-M imagery (e.g., Setvák et al., 1996) have shown that frozen tops of deep convective storms occasionally exhibit significant increase of cloud top reflectivity when observed in the 3.7 or 3.9 μm spectral bands. Similar storm top features have been documented in the NOAA-KLM AVHRR/3 1.6 μm spectral band (Setvák et al., 2003). Consequently, cross-compar...
متن کاملValidation of MODIS cloud microphysical properties
Validation of MODIS cloud microphysical properties with in situ measurements over the Southeast Pacific Q. Min, E. Joseph, Y. Lin, L. Min, B. Yin, P. H. Daum, L. I. Kleinman, J. Wang, and Y.-N. Lee Atmospheric Sciences Research Center, State University of New York, Albany, New York, USA NOAA Center for Atmospheric Sciences, Howard University, Washington DC, USA Atmospheric Sciences Division, Br...
متن کاملOptimal Threshold Selection for Wavelet Transform based on Visual Quality
Wavelet transform technique has been used for image compression targeting high visual quality reconstructed images even with high compression ratio. A visual quality measure such as Picture Quality Scale (PQS), which correlates well with the subjective Mean Opinion Score (MOS) may be employed on the compressed image for the quantizer to select the optimum dynamic threshold. The use of optimum t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of remote sensing
سال: 2022
ISSN: ['1007-4619', '2095-9494']
DOI: https://doi.org/10.11834/jrs.20210169