Hanqiu Xu, Mengjie Ren, Mengjing Lin,
The recently launched Landsat-9 has an important mission of working together with Landsat-8 to reduce the revisit period of Landsat Earth observations to eight days. This requires the data of Landsat-9 to be highly consistent with that of Landsat-8 to avoid bias caused by data inconsistency ... SR) and land surface temperature (LST) data between Landsat-8 and Landsat-9 based on five test sites from different ... demonstrated high consistency between the spectral bands of Landsat-8 and Landsat-9, with differences of around ...
Tópico(s): Remote Sensing and LiDAR Applications
2024 - Taylor & Francis | GIScience & Remote Sensing
Jie Chen, Yankun Wang, Jingzhe Wang, Yinghui Zhang, Yue‐Ping Xu, Yang Ou, Rui Zhang, Zi-Chao Wang, Zhensheng Wang, Feidong Lu, Zhongwen Hu,
... emergency management. Although the OLI-2 sensor onboard Landsat-9 is similar to the well-known OLI onboard Landsat-8, there were significant differences in the average ... bands for water detection. Additionally, the performance of Landsat-9 in water body extraction is yet to ... studies to evaluate the water extraction performance of Landsat-9 with Landsat-8. In this study, we analyze the performance of simultaneous Landsat-8 and Landsat-9 data for water body extraction based on ... water body extraction. The results showed that (1) Landsat-9 satellite data can be used for water ...
Tópico(s): Remote Sensing in Agriculture
2024 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Liang Wan, Youngryel Ryu, Benjamin Dechant, Jeongho Lee, Zilong Zhong, Huaize Feng,
... agricultural production and plant photosynthesis. Sentinel-2 and Landsat-7/8 offer the potential to assess Chl ... bidirectional reflectance factor (BRF) from Sentinel-2 and Landsat-7/8 imagery. We compared Chl estimation using ... also compared spatiotemporal Chl variations from Sentinel-2, Landsat-7/8, and MODIS. The results showed that ... for Sentinel-2, 7.4%–16.4% for Landsat-7, and 6.9%–13.7% for Landsat-8, respectively. This also resulted in a significant ... values for Sentinel-2 (0.13–0.46), Landsat-7 (0.08–0.19), and Landsat-8 ( ...
Tópico(s): Urban Heat Island Mitigation
2024 - Elsevier BV | Remote Sensing of Environment
Akpona Okujeni, Katja Kowalski, Katarzyna Ewa Lewińska, Shawn Schneidereit, Patrick Hostert,
... series data provided by the Sentinel-2 and Landsat satellite missions offer manifold opportunities for grassland monitoring. ... with the continuous long-term data record of Landsat enable analyses at seasonal, annual, and decadal scales. ... retrieving consistent grassland fractional cover time series from Landsat and Sentinel-2 imagery represents a major challenge. ... soil for Germany's permanent grasslands from the Landsat and Sentinel-2 archives. The spectral consistency of Landsat 5/7/8 and Sentinel-2A/B imagery ...
Tópico(s): Urban Heat Island Mitigation
2024 - Elsevier BV | Remote Sensing of Environment
Since the launch of the Landsat missions, they have been widely employed for monitoring water environments. However, the designed revisiting period of Landsat satellites is 16 days, leading to large uncertainties ... distribution of cloud-free observations (NCOs) obtained from Landsat missions and their applications in water environments and ... we utilized >4.8 million images acquired from Landsat-5, Landsat-7, and Landsat-8 to quantify and analyze the spatiotemporal variations ... while NCOs demonstrate substantial spatial and temporal heterogeneities, Landsat-8 provides nearly twice as many mean annual ...
Tópico(s): Meteorological Phenomena and Simulations
2024 - American Association for the Advancement of Science | Journal of Remote Sensing
Edward A. Velasco Pereira, Ma Ángeles Varo-Martínez, Francisco J. Ruíz-Gómez, Rafael M. Navarro‐Cerrillo,
... forests by integrating ALOS-PALSAR, Sentinel 1, and Landsat 8 data. Variables selected from the Random Forest ... the highest performance integrated ALS-ALOS2-Sentinel 1-Landsat 8 data (R2 = 0.59) by following the ... data (R2 = 0.56), and ALOS2-Sentinel 1-Landsat 8 (R2 = 0.50). The validation set showed ... values vary from 0.55 (ALOS2-Sentinel 1-Landsat 8) to 0.60 (ALS-ALOS2-Sentinel 1-Landsat 8 model) with RMSE below 20 Mg ha− ... the individual Sentinel 1 (R2 = 0.49). and Landsat 8 (R2 = 0.47) models yielded equivalent results. ...
Tópico(s): Forest ecology and management
2023 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Rehman Eon, Aaron Gerace, Lucy Falcon, Ethan Poole, Tania Kleynhans, Nina Raqueño, Timothy Bauch,
With the launch of Landsat-9 on 27 September 2021, Landsat continues its fifty-year continuity mission of providing users with calibrated Earth observations. It ... sensor cross-calibration. In this most recent experiment, Landsat-9 flew under Landsat-8 for nearly three days with over 50% ... were an indicator, during the commissioning phase, that Landsat-9 is behaving consistently with Landsat-8, ground reference, and UAS measurements. In the ... surface temperature. For the surface reflectance product(s), Landsat-8 and -9 are in good agreement and ...
Tópico(s): Cryospheric studies and observations
2023 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Jing Geng, Qiuyuan Tan, Junwei Lv, Huajun Fang,
... crop growth is underexplored. Moreover, while the new Landsat-9 satellite surpasses Landsat-8, its use in soil mapping is mostly ... the performance of single-date bare soil imagery (Landsat-8, Landsat-9, and Sentinel-2) and multi-temporal images (Landsat-8 and Landsat-9 combined, and Sentinel-2) using three machine ... cropland region. The results revealed that single-date Landsat-9 exhibited great potential for soil mapping with ... 15.01% and 30.07%, respectively, compared to Landsat-8, while also delivering performance slightly inferior to ...
Tópico(s): Geochemistry and Geologic Mapping
2023 - Elsevier BV | Soil and Tillage Research
Fugen Jiang, Hua Sun, Erxue Chen, Tianhong Wang, Yaling Cao, Qingwang Liu,
... vegetation growth processes and the global carbon cycle. Landsat 9, the latest launched Landsat satellite, is the successor and continuation of Landsat 8, providing a highly promising data resource for ... improve the AGB estimation and mapping using the Landsat 9 image in Wangyedian forest farm, northern China. ... to obtain the new AGB predictions. In addition, Landsat 8 images in Wangyedian were used for comparison and verification with Landsat 9. The results showed that all bands of Landsat 8 and Landsat 9 maintained a high degree ...
Tópico(s): Land Use and Ecosystem Services
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Milad Niroumand-Jadidi, Francesca Bovolo, Mariano Bresciani, Peter Gege, Claudia Giardino,
The Landsat series has marked the history of Earth observation by performing the longest continuous imaging program from space. The recent Landsat-9 carrying Operational Land Imager 2 (OLI-2) captures a higher dynamic range than sensors aboard Landsat-8 or Sentinel-2 (14-bit vs. 12- ... initial assessment on retrieving water quality parameters from Landsat-9 imagery based on both physics-based and ... a consistency analysis between the constituents derived from Landsat-9 and near-simultaneous Sentinel-2 imagery. The ...
Tópico(s): Water Quality Monitoring and Analysis
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Xiong Xu, Haoyang Pei, Chao Wang, Qingyu Xu, Huan Xie, Yanmin Jin, Yongjiu Feng, Xiaohua Tong, Changjiang Xiao,
... long time-series data, remote sensing images from Landsat satellites are widely used for land surface temperature ( ... cycle and image quality, the use of multisource Landsat images in a long-term study of the ... to the differences among multisource sensors, such as Landsat-7 and Landsat-8, there may be apparent deviations in the ... relationship between the LST results generated from multisource Landsat sensors for future research on the UHI effect. ... fitting relationship between the corresponding LST products from Landsat-7 and Landsat-8 images obtained from adjacent ...
Tópico(s): Land Use and Ecosystem Services
2022 - Elsevier BV | The Science of The Total Environment
Xiangchen Meng, Jie Cheng, Hao Guo, Yahui Guo, Beibei Yao,
... islands, geo-thermal detection, and surface energy balance. Landsat 9 was launched on 27 September 2021 and ... this study, we evaluated the performance of the Landsat 9 LST product by using a temperature-based ( ... square error (RMSE) was 3.42 K. The Landsat 9 LST product was in good agreement with the Landsat 7/8 LSTs, with an average bias of ... 0.64 K. The comparable performance of the Landsat 7/8/9 LST products can be explained ... algorithm. The absolute differences in the LST between Landsat 9 LST and MOD11 (MOD21) LST images were ...
Tópico(s): Calibration and Measurement Techniques
2022 - Institute of Electrical and Electronics Engineers | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Edward Kaita, Brian L. Markham, Md Obaidul Haque, Donald J. Dichmann, Aaron Gerace, Larry Leigh, Susan Good, Michael Schmidt, Christopher J. Crawford,
During the early post-launch phase of the Landsat 9 mission, the Landsat 8 and 9 mission teams conducted a successful under-fly of Landsat 8 by Landsat 9, allowing for the near-simultaneous data collection ... for cross-calibration. This effort, coordinated by the Landsat Calibration and Validation team, required contributions from various ... under-fly for any possible launch date of Landsat 9. This included 16 ascent plans and 16 ... acquisition plans, one for every day of the Landsat orbital repeat period, with a minimum of 5 ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Haotian You, Xu Tang, Weixi Deng, Haoxin Song, Yu Wang, Jianjun Chen,
Landsat 9 enhances the radiation resolution of the operational land imager from the 12 bits of Landsat 8 to 14 bits. The higher radiation resolution ... unclear whether the difference in radiation resolution between Landsat 8 and Landsat 9 actually affects the classification results of water ... indices were extracted in this study, based on Landsat 8 and Landsat 9 images. Then, the classification models of land ... is shown that the LULC classification results of Landsat 8 and Landsat 9 are relatively favorable in ...
Tópico(s): Remote Sensing and Land Use
2022 - Multidisciplinary Digital Publishing Institute | Sustainability
Michael A. Wulder, David P. Roy, Volker C. Radeloff, Thomas R. Loveland, Martha C. Anderson, David M. Johnson, Sean P. Healey, Zhe Zhu, T. A. Scambos, Nima Pahlevan, Matthew C. Hansen, Noel Gorelick, Christopher J. Crawford, Jeffrey G. Masek, Txomin Hermosilla, Joanne C. White, Alan Belward, Crystal Schaaf, Curtis E. Woodcock, Justin Huntington, Leo Lymburner, Patrick Hostert, Feng Gao, Alexei Lyapustin, Jean‐François Pekel, Peter Strobl, Bruce D. Cook,
Since 1972, the Landsat program has been continually monitoring the Earth, to now provide 50 years of digital, multispectral, medium spatial resolution observations. Over this time, Landsat data were crucial for many scientific and technical advances. Prior to the Landsat program, detailed, synoptic depictions of the Earth's ... datasets was limited. The early years of the Landsat program delivered a series of technological breakthroughs, pioneering ... observation missions and programs. Innovations driven by the Landsat program have paved the way for subsequent science, ...
Tópico(s): Geochemistry and Geologic Mapping
2022 - Elsevier BV | Remote Sensing of Environment
Garrison Gross, Dennis Helder, Christopher C. Begeman, Larry Leigh, Morakot Kaewmanee, Ramita Shah,
With the launch of Landsat 9 in September 2021, an optimal opportunity for in-flight cross-calibration occurred when Landsat 9 flew underneath Landsat 8 while being moved into its final orbit. ... the instruments to estimate cross-calibration parameters for Landsat 9 for a calibration update scheduled at the ... each spectral band by taking the ratio of Landsat 8 average pixel values to Landsat 9. Initial results of this approach indicated the ... were used to refine the cross-calibration of Landsat 9 to Landsat 8 at the end of ...
Tópico(s): Infrared Target Detection Methodologies
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Michael J. Choate, Rajagopalan Rengarajan, James C. Storey, Mark Lubke,
The Landsat program has a long history of providing remotely sensed data to the user community. This history is being extended with the addition of the Landsat 9 satellite, which closely mimics the Landsat 8 satellite and its instruments. These satellites contain ... on both satellites, are combined into a single Landsat product. The Landsat 5–9 satellites follow a 16 day repeat ... a global notional gridded mapping for identifying individual Landsat scenes. The Landsat 8 and 9 satellites are flown such that ...
Tópico(s): Calibration and Measurement Techniques
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Anang Dwi Purwanto, Ketut Wikantika, Albertus Deliar, Soni Darmawan,
... Sembilang National Park. The satellite data used are Landsat-7 ETM+ acquired on 30 June 2002 and Landsat-8 OLI acquired on 9 September 2019, as ... The results of DT and RF classification from Landsat-7 ETM+ and Landsat-8 OLI images show similarities regarding mangrove spatial ... NDMI + NDSI + DEM is very effective in classifying Landsat-7 ETM+ image, while the parameter combination NDMI + NIR is very effective in classifying Landsat-8 OLI image. The RF classification algorithm with ... sizes = 6, provides the highest overall accuracy for Landsat-7 ETM+ image, while combining Image (7 bands) + ...
Tópico(s): Forest Ecology and Conservation
2022 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Shi Qiu, Zhe Zhu, Rong Shang, Christopher J. Crawford,
Since 2017, the orbit of Landsat 7 has drifted outside its nominal mission requirement toward an earlier acquisition time because of limited onboard fuel resources. This makes quantitative analyses from Landsat 7 data potentially unreliable for many scientific studies. ... effect of ongoing (2018–2020) orbit drift on Landsat 7 data, we compared surface reflectance and Top- ... growing season observations (July 1 ± 30 days) from Landsat 7 with orbit drift and Landsat 8 with nominal orbit using a total of ... To evaluate the future (2021–2023) effect of Landsat 7's orbit drift, we analyzed the historical ...
Tópico(s): Remote Sensing in Agriculture
2021 - Elsevier BV | Science of Remote Sensing
Yang Chen, Ruyin Cao, Jin Chen, Licong Liu, Bunkei Matsushita,
Normalized Difference Vegetation Index (NDVI) data derived from Landsat satellites are important resources for vegetation monitoring. However, Landsat NDVI time-series data are usually temporally discontinuous ... several methods have been proposed to reconstruct continuous Landsat NDVI time-series data, some challenges remain in ... to as “GF-SG”) to reconstruct high-quality Landsat NDVI time-series data. This new method first ... series by filling missing values in the original Landsat NDVI time-series data by integrating the MODIS ...
Tópico(s): Advanced Image Fusion Techniques
2021 - Elsevier BV | ISPRS Journal of Photogrammetry and Remote Sensing
Yihang Zhang, Feng Ling, Xia Wang, Giles M. Foody, Doreen S. Boyd, Xiaodong Li, Yun Du, Peter M. Atkinson,
... The long-term collection of data from the Landsat missions provides some of the most valuable information ... e., small area) clearings in tropical forests with Landsat series images. Because the appearance of small-scale ... frequent in tropical regions, it is challenging for Landsat images to capture the logging signal. Moreover, the spatial resolution of Landsat images is typically too coarse to represent spatial ... clearings. In this paper, by fusing all available Landsat and Sentinel-2 images, we proposed a method ...
Tópico(s): Fire effects on ecosystems
2021 - Elsevier BV | Remote Sensing of Environment
Shenglin Li, Jinglei Wang, Dacheng Li, Zhongxin Ran, Bo Yang,
... improve the spatiotemporal resolution, is widely used in Landsat and MODIS data to generate Landsat-like images, but there is less exploration of combining long-time series MODIS LST and Landsat 8 LST product to generate Landsat 8-like LST. The purpose of this study ... evaluate the accuracy of the long-time series Landsat 8 LST product and the Landsat 8-like LST generated by spatiotemporal fusion. In this study, based on the Landsat 8 LST product and MODIS LST product, Landsat 8-like LST is generated using Spatial and ...
Tópico(s): Climate change and permafrost
2021 - Multidisciplinary Digital Publishing Institute | Processes
Mohammadali Hemati, Mahdi Hasanlou, Masoud Mahdianpari, Fariba Mohammadimanesh,
With uninterrupted space-based data collection since 1972, Landsat plays a key role in systematic monitoring of ... of imagery. Governments and international organizations rely on Landsat time series for monitoring and deriving a systematic ... development. In this study, we identify trends in Landsat-informed change detection studies by surveying 50 years ... review of recent developments, opportunities, and trends in Landsat change detection studies. The impact of the Landsat free and open data policy in 2008 is ...
Tópico(s): Remote Sensing in Agriculture
2021 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Xianghong Che, Hankui K. Zhang, Jiping Liu,
The Landsat satellite data applications have been broadened by the improvement in data consistency, e.g., advances in calibration ... approach to reduce inter-sensor inconsistencies by making Landsat 5, 7 and 8 reflectance consistent with MODIS ... BRDF-adjusted reflectance (NBAR). The Bayesian MODIS-consistent Landsat reflectance should be similar to the MODIS NBAR ... specific parameters. The relationships between the MODIS-consistent Landsat reflectance and the two available reflectance (i.e., the MODIS NBAR and observed Landsat reflectance) are built in the Bayesian framework. The ...
Tópico(s): Remote Sensing and LiDAR Applications
2021 - Elsevier BV | Remote Sensing of Environment
Michael C. Wimberly, Kirsten M. de Beurs, Tatiana Loboda, William Pan,
... higher-resolution data from satellite missions such as Landsat are needed (Figure 4A ). The Landsat program has collected optical data at 30 m ... 60–120 m resolutions since the launch of Landsat 4 in 1982 (Figure 2). Although the 16-day revisit time of a Landsat satellite is considerably longer than the daily resolution ... seasonal to annual time scales. Most applications of Landsat for malaria risk assessment have used one or ... Sens. 2020; 12: 1585Crossref Scopus (5) Google Scholar]. Landsat is also frequently used to create classified land ...
Tópico(s): Viral Infections and Vectors
2021 - Elsevier BV | Trends in Parasitology
Na Chen, Nandin‐Erdene Tsendbazar, Eliakim Hamunyela, Jan Verbesselt, Martin Herold,
... the development of sustainable forest management strategies. Traditionally, Landsat imagery was widely used to monitor forest disturbance, but the low temporal density of Landsat observations limits the timely detection of forest disturbance. Recently a new harmonized dataset of Landsat and Sentinel-2 imagery (HLS) has been created ... series, we also detected forest disturbance from (i) Landsat-8/OLI time series only and (ii) Sentinel- ... at the Tanzania site shows that the combined Landsat-8/OLI and Sentinel-2 data achieved the ...
Tópico(s): Land Use and Ecosystem Services
2021 - Elsevier BV | International Journal of Applied Earth Observation and Geoinformation
Michael J. Choate, Rajagopalan Rengarajan, James C. Storey, Mark Lubke,
The Landsat 7 (L7) spacecraft and its instrument, the enhanced thematic mapper plus (ETM+), have been consistently characterized and ... determined through the U. S. Geological Survey (USGS) Landsat image assessment system (IAS), which has been performing ... adopted a tiered collection management structure for its Landsat data products that ensures a consistent method of processing for the Landsat archive within a given collection while allowing a ... the end of 2020 was part of the Landsat data Collection 1, in the middle of 2020 ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2021 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Bassam Gabr, M.D. SOHEIR M. ESMAT HEBA M. AHMED, Yehia Marmoush,
... study proposes a methodology to spatially enhance the Landsat-derived bathymetry. Two different satellite images, i.e., Landsat and PlantScope with a spatial resolution of 30 ... respectively have been assessed in bathymetry mapping. The Landsat image resolution has been spatially enhanced to match the Planetscope resolution. The panchromatic band of the Landsat image has been downscaled and used for pan- ... coast of Egypt. The SDB from the PlanetScope, Landsat 8 OLI, and Enhanced Landsat 8 OLI were assessed using error analysis. It ...
Tópico(s): Automated Road and Building Extraction
2020 - Multidisciplinary Digital Publishing Institute | Journal of Marine Science and Engineering
The Landsat program, since its commencement in 1972, has acquired millions of images of our planet. Those images are ... number of studies have been conducted to blend Landsat images with Moderate Resolution Imaging Spectroradiometer (MODIS) images ... blending models reported that they can predict synthetic Landsat images with various degrees of accuracy. However, only ... Fusion Model - KFRFM) to predict time-series synthetic Landsat images from Landsat and MODIS images, and simultaneously to estimate uncertainty ...
Tópico(s): Remote-Sensing Image Classification
2020 - Elsevier BV | Remote Sensing of Environment