Results 21 to 30 of about 22,501,606 (215)

Estimating ocean net primary productivity from daily cycles of carbon biomass measured by profiling floats

Limnology and Oceanography Letters, 2023
The dependence of net primary productivity (NPP), a central metric in ecology and biogeochemistry, on sunlight drives daily cycles in carbon biomass in the ocean's euphotic zone. In this study, we infer NPP from the daily cycle of biomass.
Adam C. Stoer, Katja Fennel
doaj   +1 more source

An Overview of the Science Performances and Calibration/Validation of Joint Polar Satellite System Operational Products

Remote Sensing, 2019
The Suomi National Polar-orbiting Partnership (S-NPP) satellite, launched in October 2011, initiated a series of the next-generation weather satellites for the National Oceanic and Atmospheric Administration (NOAA) Joint Polar Satellite System (JPSS ...
Lihang Zhou, Murty Divakarla, Xingpin Liu, Arron Layns, Mitch Goldberg   +4 more
doaj   +1 more source

Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective

Frontiers in Marine Science, 2023
Both remote sensing and numerical models revealed increasing net primary production (NPP) in the Arctic Ocean due to declining sea ice cover and increasing ice-free days.
Anqi Xu, Meibing Jin, Meibing Jin, Yingxu Wu, Di Qi   +4 more
doaj   +1 more source

The Effects of VIIRS Detector-Level and Band-Averaged Relative Spectral Response Differences Between S-NPP and NOAA-20 on the Thermal Emissive Bands

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
The Joint Polar Satellite System-1 (renamed NOAA-20 after reaching the polar orbit) was successfully launched on November 18, 2017, into an afternoon orbit with a local equator crossing time of ~1:30 p.m., in the same orbital plane as the Suomi National ...
Lin Lin, Changyong Cao
doaj   +1 more source

Assessing restoration and degradation of natural and artificial vegetation in the arid zone of Northwest China

Frontiers in Ecology and Evolution, 2023
Assessing vegetation restoration and degradation trends is important for regional ecological conservation and sustainable development, yet few studies have examined the characteristics of these trends in natural and artificial vegetation in arid zones ...
Jinxia Zhang, Jinxia Zhang, Zhi Li, Weili Duan, Hongfang Zhao, Hongfang Zhao, Haichao Hao, Haichao Hao, Yanyun Xiang, Qifei Zhang   +9 more
doaj   +1 more source

Damage and vibrations of nuclear power plant buildings subjected to aircraft crash part I: Model test

Nuclear Engineering and Technology, 2021
Investigations of large commercial aircraft impact effect on nuclear power plant (NPP) buildings have been drawing extensive attentions, particularly after the 9/11 event, and this paper aims to experimentally assess the damage and vibrations of NPP ...
Z.R. Li, Z.C. Li, Z.F. Dong, T. Huang, Y.G. Lu, J.L. Rong, H. Wu   +6 more
doaj   +1 more source

Projections of the Net Primary Production of Terrestrial Ecosystem and Spatiotemporal Responses to Climate Change in the Yangtze River Economic Belt

Diversity, 2022
Evaluating the responses of net primary productivity (NPP) to climate change is essential for regional ecosystem management and adaptations to climate change.
Li Yu, Botao Zhou, Yuqing Xu, Yongxiang Zhang, Fengxue Gu   +4 more
doaj   +1 more source

Damage and vibrations of nuclear power plant buildings subjected to aircraft crash part II: Numerical simulations

Nuclear Engineering and Technology, 2021
Investigations of large commercial aircraft impact effect on nuclear power plant (NPP) buildings have been drawing extensive attentions, particularly after the 9/11 event, and this paper aims to numerically assess the damage and vibrations of NPP ...
Z.R. Li, Z.C. Li, Z.F. Dong, T. Huang, Y.G. Lu, J.L. Rong, H. Wu   +6 more
doaj   +1 more source

Análise dos focos de calor detectados pelo MODIS e VIIRS em município da Amazônia Legal

Biodiversidade Brasileira, 2019
Incêndios florestais são caracterizados como desastres ambientais e dependendo da gravidade destroem florestas inteiras causando perdas no ecossistema e ativos.
Vanusa de Souza Pacheco Hoki, Luciana Sanches, Pricila Juliana Souza, Ana Carolina Freitas da Silva Taques, Jonathan Willian Zangeski Novais   +4 more
doaj   +3 more sources

Impact Assessment of the M_s7.0 Earthquake on Jiuzhaigou Valley from the Perspective of Vegetation Net Primary Productivity

Sensors, 2022
In order to assess the impact of the Ms7.0 Jiuzhaigou earthquake that occurred on 8 August 2017 on vegetation, the Carnegie-Ames-Stanford Approach (CASA) model was adopted to estimate the vegetation net primary productivity (NPP) of Jiuzhaigou Valley ...
Chenyuan Wang, Xudong Hu, Kaiheng Hu, Shuang Liu, Wei Zhong   +4 more
doaj   +1 more source