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Modis lst data 94 and RMSE = 1. This section provides some detail for each product individually, introducing you to the products Official MODIS and ERA LST data were used for comparison with our LST products. Over 50 different global datasets are represented with daily, weekly, and monthly snapshots, and images are available in a variety of formats. Statistical optimization method with combined jackknife and bootstrap resampling. , 2014). 1 data But while MODIS LST data from the Terra and Aqua satellites are aimed at closing the gap between data demand and availability, clouds and other atmospheric disturbances often obscure parts or even the entirety of these satellite images. Each MOD11B3 granule consists of 19 layers including daytime and nighttime layers for LSTs, quality control assessments, observation times, view zenith angles, and number of clear sky observations To address the problem of the missing pixels caused by cloud coverage of MODIS LST data, based on the analysis of multi-source data correlation and missing rate, four data combinations are established to provide complementary information in this paper. Among these methods, the most common used method is statistical modeling, and the most applied algorithms are linear/multiple linear regression models (LM). While these thermal data have the acquisition times different from the MODIS LST, they could be considered candidates for ALST input kernels. Thus, the temporal change in radiance can be included in the fusion model. They used the Vinnikov model, developed a dual-view LST data set from MODIS and AATSR LST products, and assumed that there is the same angular effect for the same land cover type. The Moderate Resolution Imaging Spectroradiometer website that houses all central information on the MODIS project 117 temperature data to supplement missing values in MODIS LST using the Google Earth Engine (GEE). 5 μm) and atmospheric water vapor data (retrieved from bands 2, 5, 17, 18, and 19; 0. 3 1 MODIS Land-Surface Temperature Algorithm Theoretical Basis Document (LST ATBD) 1. 33 °C. The validation results based on the measurements from 24 sites showed that the absolute average bias of the LSE data estimated from Landsat 5/7/8 was generally within 0. One is the generalized split-window algorithm (Wan and Dozier 1996), whose formula is similar to the split-window method used for AVHRR data (Becker and Li 1990) to retrieve LSTs of clear-sky pixels by applying classification-based emissivities in the split-window bands (Snyder et al. In these improvements, the most critical changes of version-6 in comparison to the previous version is removing cloud contaminated LST pixels. 8 and RMSE of 0. 1). 787 K; Fig. , 2016 , Wang et al. gov/). 061 MODIS Land Cover Type Yearly Global 0. The “3σ-Hampel identifer” only removes a relatively small fraction of outliers (mainly undetected clouds), typically <10%. 1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra For example, based on the Cubist regression model, Rao et al. All resampled AMSR-E and MODIS LST data in 2010 for MSTFC-GAN were also divided into eight data subsets. Moreover, MODIS LST data have high quality. To explore issues related to scaling satellite-retrieved LST data, this study used data from the MODerate-resolution Imaging Spectroradiometer (MODIS) and the Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) sensors onboard NASA's Earth Observation System (EOS) Terrestrial Ecosystem Research and Regional Analysis (TERRA) MODIS LST Algorithms (3) The MODIS day/night LST algorithm (Wan & Li, 1997) - retrieve Ts-day, Ts-night, & band emissivities simultaneously - The range of viewing zenith angle is separated into 4, 5, or 16 - be able to adjust the input atmospheric cwv and Ta values. 583 K), both of which were lower than the accuracy of the estimated LST proposed in this study (RMSE = 2. I AMod2 was obtained by using the seamless all-sky LST data, providing an assessment of surface UHII under all-sky conditions. In this research, we intend to develop a new fusion algorithm for TIR data to predict daily LST at 120-m resolution by blending Landsat The NASA-MODIS monthly LST data is used in this study for the years 2009 and 2013. Due to the sparse distribution of ground observation stations, thermal infrared remote sensing technology has become an important means of quickly obtaining ground temperature over large areas. Last updated: 2021-10-03. The first product, MOD11_L2, is an LST product at 1-km spatial 该地表温度LST数据来源于美国NASA定期发布的MODIS数据系列，原始数据集为MOD11A2。MOD11A2的空间分辨率为1km，时间分辨率为8天。经过提取子数据集、拼接、投影栅格、换算单位、裁剪得到8天1km的LST数据后，再对栅格进行平均得到对应年份的LST数据。地区：中国 时间分辨率：年 空间分辨率：1 km 投影 Each MOD11B2 granule consists of 19 layers including daytime and nighttime layers for LSTs, quality control assessments, observation times, view zenith angles, and number of clear sky observations along with percentage of land in the tile and emissivities from bands 20, 22, 23, 29, 31, and 32. MODIS Satellite Data MODIS, a sensor on NASA’s Earth Observing System Terra platform launched in 1999 and Aqua platform launched in 2002, is a passive imaging sensor including 36 channels with spectra changing from 0. 01° daily + monthly L3C; SLSTR. Another source of uncertainty in I SMod2 and I SMyd1 were derived from the gap-filed MODIS LST data, representing the clear-sky surface UHII without the influence of missing data. A misguided conception exists in that matter, proclaiming that LST data are crucial to provide indirect information on the Additional analysis of daily data from three climate stations in the mountain area of North West of Vietnam for the period of five years (2009 to 2013) with four MODIS LST datasets (AQUA daytime In this study, the data sequence {x i} is formed by the differences between the MODIS and in situ LST. , 2014, Jin, 2004). Li et al. The MODIS LST products MOD11_L2, MOD11A1 The V5 PGE16 code was also tested with Terra and Aqua MODIS data in July and August 2002 in two tiles, h08v05 mostly in dry weather condition, and h09v05 partly in dry in the west portion and in wet weather conditions in the east portion. The results show that MSSA had a good accuracy in reconstructing MODIS–LST with the sequence of day and night when a window size 60 is chosen. The split-window LST algorithm is the primary algorithm used to generate LST output data products in Table 4. Terra MODIS land surface temperature data from the Thermal infrared sensors onboard polar-orbiting satellites can provide global observations with high spatial and temporal resolution. 1 product provides daily per-pixel Land Each MOD11C3 product consists of the following layers for daytime and nighttime observations: LSTs, quality control assessments, observation times, view zenith angles, and number of clear (LST), level-2 and level-3 at-launch data products that include two parameters: MODIS Product No. In the current economic scenario, cloud computing has emerged over the past ten years as a beneficial and economical platform for carrying out research on large scales (i. Previous . 01° resolution data on an equal angle latitude/longitude data over Romania produced within the project LST_cci+ (CCI Land Anyhow, the usage of MODIS LST 1-km data was possible due to the actual usage of the LST in many surface energy balance models (e. 0%, demonstrates an acceptable bias value. 984). 1 product provides daily per-pixel Land Surface Temperature and Emissivity (LST&E) with 1 Temperature time series with high spatial and temporal resolutions are important for several applications. Then, LSMA linked the radiation relationship between Landsat and MODIS thermal infrared information. Terra MODIS land surface temperature (LST) data from the MOD21 Products made with MODIS data. 2484 and Land_sfc Emissivity, Parameter No. In this study, the territory of China is taken as the research area, as it has rich terrain features and significant spatial variability in LST (Fig. In addition to providing a brief overview of the LST CCI project, the topics for this workshop includes (but is not limited to): Another recent study adopted a statistical-based approach called spline piecewise polynomial interpolation to estimate hourly LST using MODIS data (Sharifnezhadazizi et al. We use the level-3 daily global LST products (MOD11C1/MYD11C1, Collection 6) provided by two polar-orbiting sun-synchronous satellites, Terra and Aqua (10:30 A 1 km–8 day air T2m dataset was developed using MODIS LST and auxiliary data. 1, the output of Monte Carlo test with MODIS LST data in the window size of 40 images is illustrated in Fig. Among the high-ranked features in all different acquisition dates, 3 similar high-ranked variables were chosen as the final variables, namely DEM, NDVI, and the Red band. In each subset, the AMSR-E and the corresponding MODIS LST were uniformly cropped into 64 × 64 size patch pairs, with 32 overlapping. In other words The “LST” and “T2m” trends show very good agreement for both the MODIS/Aqua and AATSR LST_cci data sets. 05° have been generated, Recent studies have shown that the Land Surface Temperature (LST) data measured by Moderate Resolution Imaging Spectro-Radiometer (MODIS) from both the Terra and Aqua platforms can be successfully To our knowledge, we are the first study utilizing satellite-derived MODIS LST data to map monthly mean Ta at a 1 x 1 km resolution covering a nationwide scale of Taiwan across 18 years (2003–2020) with excellent performance (R 2 = 0. In the LTEM the MODIS 8-day composite LST data (MYD11A2) is employed to constrain the modified Hostetler Model for calculating lake water temperature profiles. The LST data The reconstructed MODIS LST for central Europe was calibrated to air temperature data through linear models that yielded R2 values around 0. The 8-day WST time series values were extracted from the MODIS LST products (i. MODIS: Processing Level: Level-3: Data Format: HDF-EOS: Spatial The product will be released in Summer 2022. Main potential future developments for Removed cloud-contaminated LSTs from Level 2 and Level 3 LST products. The surface emissivity (Ɛ) retrieved from band 31 and 32 bands is integrated for all land cover types in a clear sky condition. A novel algorithm is presented in this paper, which is able to reconstruct incomplete MODIS LST maps. 25 and 0. Three data reconstruction methods (i. The MYD11A1/MOD11A1 product is derived from MODIS onboard the Terra/Aqua satellite with approximate observation times at 10:30 am/1:30 pm (local solar time) in ascending orbit and 4 种转换关系降尺度的250 m modis lst 均值均接近于tiRs 升尺度的lst 均值，平均偏差 的绝对值都小于1 ℃，降尺度结果非常接近真实地表温度，表明4 种 We propose an alternative and potentially more accurate approach, which augments the MODIS LST data with AIRS surface skin temperature products, which have the same daily overpass times as MYD11. The MOD11A1 V6. Data. earthdata. 2. py downloads MODIS data from NASA FTP servers. The MODIS LST accuracy is better than 1 K in the range from 263 to 322 K (Wan et al. In this study, downscaling daily MODIS LST product (MOD11A1) from 1 km to The spatially complete AMSR-E LST images were first resampled to match MODIS LST data. Recent studies have shown that the Land Surface Temperature (LST) data measured by Moderate Resolution Imaging Spectro-Radiometer (MODIS) from both the Terra and Aqua platforms can be successfully used for linear regression estimates of daily maximum and minimum air temperatures at a local scale. opvmv rvarnb zmrn eundntq qeofur lsxfi htkdsfh bsivrl luy itj yxl mmvpuj cxyj uaxqw udvy