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Remote Sensing, Volume 15, Issue 7

April-1 2023 - 237 articles

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Cover Story: The Landsat 8 and 9 Underfly Event occurred in November 2021, where L9 flew beneath L8 in the final stages before settling in its final orbiting path. An initial analysis, dubbed “Phase 1”, was performed on the images taken during this event, which resulted in a cross-calibration with uncertainties estimated to be less than 1%. This level of precision was due in part to the near-identical sensors aboard each instrument as well as the underfly event itself, which allowed the sensors to take nearly the exact same image at nearly the exact same time. There were three forms of uncertainty established in Phase 1: geometric, spectral, and angular. This paper covers Phase 2 of the underfly analysis, which made several modifications to the Phase 1 process. The results here were used by USGS EROS to update the L9 calibration at the end of 2022. View this paper

Articles (237)

  • Technical Note
  • Open Access
12 Citations
3,102 Views
15 Pages

6 April 2023

High-resolution digital elevation models (DEMs) are important for relevant geoscience research and practical applications. Compared with traditional hardware-based methods, super-resolution (SR) reconstruction techniques are currently low-cost and fe...

  • Article
  • Open Access
3 Citations
2,339 Views
26 Pages

GF-1/6 Satellite Pixel-by-Pixel Quality Tagging Algorithm

  • Xin Fan,
  • Hao Chang,
  • Lianzhi Huo and
  • Changmiao Hu

6 April 2023

The Landsat and Sentinel series satellites contain their own quality tagging data products, marking the source image pixel by pixel with several specific semantic categories. These data products generally contain categories such as cloud, cloud shado...

  • Article
  • Open Access
2 Citations
2,290 Views
20 Pages

6 April 2023

With the widespread application of GNSS, the delicate handling of biases among different systems and different frequencies is of critical importance, wherein the inter-frequency clock biases (IFCBs) and observable-specific signal biases (OSBs) should...

  • Article
  • Open Access
12 Citations
3,952 Views
22 Pages

6 April 2023

The Open-Source Digital Elevation Model (DEM) is fundamental data of the geoscientific community. However, the variation of its accuracy with land cover type and topography has not been thoroughly studied. This study evaluates the accuracy of five gl...

  • Article
  • Open Access
17 Citations
3,426 Views
29 Pages

6 April 2023

Long-time-series climate prediction is of great significance for mitigating disasters; promoting ecological civilization; identifying climate change patterns and preventing floods, drought and typhoons. However, the general public often struggles wit...

  • Article
  • Open Access
9 Citations
3,634 Views
26 Pages

6 April 2023

Imaging and measuring the Earth’s relief with sensors mounted upon unmanned aerial vehicles is an increasingly frequently used and promising method of remote sensing. In the context of fluvial geomorphology and its applications, e.g., landform...

  • Article
  • Open Access
17 Citations
2,936 Views
24 Pages

The Respondence of Wave on Sea Surface Temperature in the Context of Global Change

  • Ru Yao,
  • Weizeng Shao,
  • Mengyu Hao,
  • Juncheng Zuo and
  • Song Hu

6 April 2023

Several aspects of global climate change, e.g., the rise of sea level and water temperature anomalies, suggest the advantages of studying wave distributions. In this study, WAVEWATCH-III (WW3) (version 6.07), which is a well-known numerical wave mode...

  • Article
  • Open Access
5 Citations
3,145 Views
22 Pages

6 April 2023

The distribution of the population is an essential aspect of addressing social, economic, and environmental problems. Gridded population data can provide more detailed information than census data, and multisource data from remote sensing and geograp...

  • Article
  • Open Access
14 Citations
6,042 Views
18 Pages

The Development of a Low-Cost Hydrophone for Passive Acoustic Monitoring of Dolphin’s Vocalizations

  • Rocco De Marco,
  • Francesco Di Nardo,
  • Alessandro Lucchetti,
  • Massimo Virgili,
  • Andrea Petetta,
  • Daniel Li Veli,
  • Laura Screpanti,
  • Veronica Bartolucci and
  • David Scaradozzi

6 April 2023

Passive acoustics are widely used to monitor the presence of dolphins in the marine environment. This study aims to introduce a low-cost and homemade approach for assembling a complete underwater microphone (i.e., the hydrophone), employing cheap and...

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