Results 71 to 80 of about 14,369 (264)

QWIPs, SLS, Landsat and the International Space Station [PDF]

open access: yes
In 1988 DARPA provided funding to NASAs Goddard Space Flight Center to support the development of GaAs Quantum Well Infrared Photodetectors (QWIP). The goal was to make a single element photodetector that might be expandable to a two-dimensional array ...
Choi, K.   +4 more
core   +1 more source

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis   +3 more
wiley   +1 more source

A Proposal for Standardized MMOD Shielding for Robotic Spacecraft [PDF]

open access: yes
NASA robotic spacecraft are required to assess the potential for small debris induced failure for all disposal-critical components. Additional shielding might then be necessary in order to meet the acceptable risk requirement for the overall mission ...
Hull, Scott M.
core   +1 more source

Climate‐Driven Mangrove Dieback and Recovery: A Case Study in Albert and Leichhardt Rivers, Australia

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Cycles of dieback and recovery drove mangrove forest dynamics at the Albert and Leichhardt Rivers (Gulf of Carpentaria, Queensland, Australia) over 36 years (1987–2023). Landward margins were the most affected by reduced tidal inundation when the alignment of low lunar declination suppressed tidal range and extreme El Niño phases lowered mean sea level.
Rogerio Victor S. Gonçalves   +4 more
wiley   +1 more source

Landsat 9 Thermal Infrared Sensor 2 Subsystem-Level Spectral Test Results [PDF]

open access: yes
Results from the Thermal Infrared Sensor 2 (TIRS-2) prelaunch spectral characterization at telescope and detector subsystem level are presented. The derived relative spectral response (RSR) shape is expected to be very similar to the instrument-level ...
Efremova, Boryana   +6 more
core   +1 more source

Cross-comparison of Landsat-8 and Landsat-9 data: a three-level approach based on underfly images

open access: yesGIScience & Remote Sensing
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.
Hanqiu Xu, Mengjie Ren, Mengjing Lin
doaj   +1 more source

ADAPTAÇÃO DO ALGORITMO SAFER PARA IMAGENS LANDSAT 9

open access: yesIRRIGA
ADAPTAÇÃO DO ALGORITMO SAFER PARA IMAGENS LANDSAT 9     CÉSAR DE OLIVEIRA FERREIRA SILVA1   1 Stormgeo, Avenida Mutinga, 4935, CEP 05110-903, São Paulo, SP, Brasil, cesaroliveira.f.silva@gmail.com; ORCID (https://orcid.org/0000-0002-5152-6497).     1 RESUMO   O algoritmo SAFER (Simple Algorithm for Evapotranspiration Retrieving) tem sido largamente ...
openaire   +1 more source

From Prediction to Prevention: An Explainable GeoAI Framework for Flood Susceptibility and Urban Exposure Assessment Using Machine and Deep Learning Models

open access: yesSustainable Development, EarlyView.
ABSTRACT Rapid urbanisation and intensifying rainfall have increased cities' vulnerability to flooding, posing major challenges to sustainable development. Although machine learning models have improved flood prediction accuracy, most remain limited by their black‐box nature and lack of actionable insights.
Abdulwaheed Tella   +4 more
wiley   +1 more source

Landsat 9 Thermal Infrared Sensor 2 Architecture and Design [PDF]

open access: yes
The Thermal Infrared Sensor 2 (TIRS-2) will fly aboard the Landsat 9 spacecraft and leverages the Thermal Infrared Sensor (TIRS) design currently flying on Landsat 8.
Alexander, David   +32 more
core   +1 more source

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