Results 41 to 50 of about 9,439 (173)

Dynamic Boundaries of Antarctic Active Subglacial Lakes Reveal Underestimated Water Volume Change and Overestimated Lakebed Active Area

Geophysical Research Letters, Volume 53, Issue 2, -Not available-.
Abstract This study revisited 158 documented active subglacial lakes across Antarctica, applying a height‐change anomaly delineation algorithm to CryoSat‐2 and ICESat‐2 satellite altimetry data to assemble a 14.75‐year (2010.5–2025.25) time series of active subglacial lake dynamics.
W. Sauthoff, M. R. Siegfried, R. A. Venturelli, B. E. Smith   +3 more
wiley   +1 more source

Applying Parametric Model Correction on Sea State Bias to Estimate Sea Surface Height over the Savu Sea [PDF]

BIO Web of Conferences
Range, the distance between the satellite and the ocean surface covered by the radar trace, is measured by tracking the received waveform. The range measurement errors may be caused by sea state bias (SSB) which is the main source of measurement errors ...
Dewi Alifia Rusydah Fitria, Dwi Siswanto Aries, Wicaksono Ashari, Giri Dwi Kartika Ary   +3 more
doaj   +1 more source

Wide‐Swath Satellite Altimetry Data Improves Modeled Mesoscale and Submesoscale Dynamics in a Western Boundary Current

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Ocean state estimates that represent mesoscale and submesoscale dynamics are crucial for climate research and ocean forecasting. Accurate submesoscale representation in ocean models is a current challenge due to rapidly evolving flow and lack of observations at suitable scales.
C. Kerry, S. R. Keating, M. Roughan, M. Azaneu, G. B. Brassington   +4 more
wiley   +1 more source

Water Storage Changes of Lakes and Reservoirs Across Asia (2018–2023) and Their Effects in Flood Control

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Monitoring lake and reservoir water levels is critical for water resource management and flood risk mitigation. We integrate Sentinel‐3A/B and ICESat‐2 altimetry to reconstruct monthly water levels (2018–2023) for 7,433 lakes and reservoirs (>5 km2) across Asia and estimate their storage variations.
Zhiyuan An, Zhao Li, Taoyong Jin, Weiping Jiang, Peng Yuan, Kai Liu, Jian Wang, Peng Chen   +7 more
wiley   +1 more source

A Calibration Method for Large-Footprint Full-Waveform Airborne Laser Altimeter without a Calibration Field

Remote Sensing, 2023
The geometrical measurement precision of laser spots is affected by the deviation between the parameters of the laser altimeter and the laboratory measurement results, and the inversion accuracy of surface object height is also limited.
Shaoning Li, Qifan Yu, Anmin Fu, Guo Zhang   +3 more
doaj   +1 more source

Ultra‐Sensitive Dual‐Resonator Graphene Pressure Sensor with Temperature Self‐Compensation

Advanced Science, Volume 13, Issue 5, 27 January 2026.
This work presents a graphene resonator sensor based on a dual‐cavity interferometric scheme that achieves high sensitivity to pressure variations. Its lightweight and compact design enables drone‐based field experiments, underscoring the promise of graphene optomechanical devices for portable and scalable sensing applications.
Zhen Wan, Cheng Li, Zhengwei Wu, Pengcheng Zhao, Yang Liu, Wanting Li, Shangchun Fan, Wei Jin   +7 more
wiley   +1 more source

Exploring Habitat Preferences, Suitability, and Illegal Trade Routes of Indian Pangolins in Western Pakistan: Implications for Conservation

Ecology and Evolution, Volume 16, Issue 1, January 2026.
This study assessed habitat preferences, suitability, and illegal trade routes of the endangered Indian pangolin in Pakistan's Khyber Pakhtunkhwa province. Using field surveys and MaxEnt modeling, we identified fragmented habitats with only 22% classified as highly suitable, alongside key poaching and trafficking pathways.
Tariq Ahmad, Arshad Ali, Muhammad Farooq, Bo Li, Sayantani M. Basak, Tika Ram Poudel, Khuzin Dinislam   +6 more
wiley   +1 more source

Inter-comparisons of Arctic snow depth products

International Journal of Digital Earth
Applying ICESat-2 and CryoSat-2 freeboards, the Arctic snow depth (ISCS) was obtained from October 2018 to April 2022. The results were assessed using Operation Ice Bridge (OIB) and Multidisciplinary Drifting Observatory for the Study of Arctic Climate ...
Mengmeng Li, Changqing Ke, Bin Cheng, Jianwei Ma, Huiwei Jiang, Xiaoyi Shen   +5 more
doaj   +1 more source

A New Lunar DEM Based on the Calibrated Chang’E-1 Laser Altimeter Data

Advances in Astronomy, 2018
To improve the lunar DEM accuracy derived from CE-1 altimeter data, CE-1 laser altimeter data are calibrated in this paper. Orbit accuracy and ranging accuracy are the two most important factors to affect the application of altimeter data in the lunar ...
Yong Huang, Shengqi Chang, Songhe Qin, Peijia Li, Xiaogong Hu, Min Fan   +5 more
doaj   +1 more source

Small and Medium‐Sized Inland Waterbodies: Water Volume Predictions and Flood Implications

Water Resources Research, Volume 62, Issue 1, -Not available-.
Abstract Small (<10 ha) and medium (10–100 ha) inland waterbodies are crucial for water storage and flood regulation, necessitating an improved understanding of their water volume. Traditional water volume measurement methods, modeling techniques, and advanced altimetry missions struggle to capture the non‐linear volume changes in these waterbodies ...
Ankit Sharma, Idhayachandhiran Ilampooranan   +1 more
wiley   +1 more source