نتایج جستجو برای: مدل lst
تعداد نتایج: 121998 فیلتر نتایج به سال:
This paper uses the refined Generalized Split-Window (GSW) algorithm to derive the land surface temperature (LST) from the data acquired by the Visible and Infrared Radiometer on FengYun 3B (FY-3B/VIRR). The coefficients in the GSW algorithm corresponding to a series of overlapping ranges for the mean emissivity, the atmospheric Water Vapor Content (WVC), and the LST are derived using a statist...
The successful launch of the Landsat 8 satellite with two thermal infrared bands on February 11, 2013, for continuous Earth observation provided another opportunity for remote sensing of land surface temperature (LST). However, calibration notices issued by the United States Geological Survey (USGS) indicated that data from the Landsat 8 Thermal Infrared Sensor (TIRS) Band 11 have large uncerta...
We present a methodology to validate land surface temperature (LST) retrieved from Advanced AlongTrack Scanning Radiometer (AATSR) data in heterogeneous areas. To this end, a set of algorithms based on Split-Window (SW) and Dual-Angle (DA) techniques has been proposed and evaluated with in situ measurements of LST obtained from field campaigns made in heterogeneous areas. These campaigns were c...
We analyze a database of 3,325 free response anomalous cognition experiments, using procedures recently used in an analysis of a catalog of UFO events. A histogram analysis shows evidence of a significant annual modulation in the success rate, but no significant evidence for modulations associated with time of day or local sidereal time (LST). The salient feature of a power spectrum formed by t...
New Scheme for Validating Remote-Sensing Land Surface Temperature Products with Station Observations
Continuous land-surface temperature (LST) observations from ground-based stations are an important reference dataset for validating remote-sensing LST products. However, a lack of evaluations of the representativeness of station observations limits the reliability of validation results. In this study, a new practical validation scheme is presented for validating remote-sensing LST products that...
The study of urban climate requires frequent and accurate monitoring of land surface temperature (LST), at the local scale. Since currently, no space-borne sensor provides frequent thermal infrared imagery at high spatial resolution, the scientific community has focused on synergistic methods for retrieving LST that can be suitable for urban studies. Synergistic methods that combine the spatial...
Temperature time series with high spatial and temporal resolutions are important for several applications. The new MODIS Land Surface Temperature (LST) collection 6 provides numerous improvements compared to collection 5. However, being remotely sensed data in the thermal range, LST shows gaps in cloud-covered areas. We present a novel method to fully reconstruct MODIS daily LST products for ce...
تبخیر و تعرق یکی از مهمترین پارامترهایی است که دانستن آن برای برآورد آب مصرفی گیاه و طراحی سیستمهای آبیاری ضروری است. ترکیب مدلهای برآورد تبخیر و تعرق مرجع و دادههای حاصل از تصاویر ماهوارهای امکان بررسی تغییرات مکانی این متغیر را در سطوح گسترده و وسیع فراهم میکند. در این پژوهش، چهار مدل تجربی هارگریوز-سامانی و بلانی-کریدل، تورک و لینیاکر که وابسته به دادههای دمای هوا هستند، با ورودی ...
چکیده پدیده جزیره حرارتی شهری بهطور کلی بهوسیله یک کاهش در جریان گرمای نهان و یک افزایش در گرمای محسوس در مناطق شهری صورت میگیرد. امروزه این پدیده یکی از معضلات عمده شهرهای بزرگ میباشد، بهطوری که توجه بسیاری از محققان و متخصصان در رشتههای مختلف را بهخود جلب نموده است. در این تحقیق جزایر حرارتی شهر تهران که یکی از پرجمعیتترین شهرهای دنیا بوده و هر روزه بر جمعیت و ساخت و سازهای آن...
OBJECTIVE Approximately 60% of deaths in pediatric intensive care units follow limitation or withdrawal of life-sustaining treatment (LST). We aimed to describe the circumstances surrounding decision making and end-of-life care in this setting. METHODS We conducted a prospective, descriptive study based on a survey with the intensivist after every consecutive death during an 8-month period in...
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