Results 61 to 70 of about 5,793 (300)

Drought Risk in Mango and Avocado Orchards: Insights Into Plant Water Relations and Irrigation‐Related Agronomic Solutions

Irrigation and Drainage, EarlyView.
ABSTRACT Climate change is making water availability more uncertain, with growing consequences for the productivity and long‐term sustainability of tropical and subtropical fruit orchards. Mangifera indica L. and Persea americana Mill. both require large amounts of water to sustain growth and productivity.
Eleonora Cataldo
wiley   +1 more source

Determination of Primary Spectral Bands for Remote Sensing of Aquatic Environments

Sensors, 2007
About 30 years ago, NASA launched the first ocean-color observing satellite:the Coastal Zone Color Scanner. CZCS had 5 bands in the visible-infrared domain with anobjective to detect changes of phytoplankton (measured by concentration of chlorophyll ...
MingXia He, Robert Arnone, Kendall Carder, ZhongPing Lee   +3 more
doaj   +1 more source

The Use of VGPM to Estimate Oceanic Primary Production: A “Tango” Difficult to Dance

Journal of Remote Sensing, 2022
One of the primary goals of launching an ocean color satellite is to obtain over the global ocean synoptic measurements of primary production (PP), a measure of phytoplankton photosynthesis.
Zhongping Lee, John F. Marra
doaj   +1 more source

Chapter 20 - Satellite ocean color validation

, 2023
Ocean color satellites measure the color of the ocean, allowing for the retrieval of optical, biological, and biogeochemical properties of waters. However, satellite ocean color products must be validated with field measurements to ensure their fidelity ...
Goes, Joaquim, Tufillaro, Nicholas, Wang, Menghua, Gilerson, Alexander, Voss, Kenneth J., Ladner, Sherwin, Lee, Zhongping, Wei, Jianwei, Lance, Veronica P., Ondrusek, Michael, Hu, Chuanmin   +10 more
core   +1 more source

Analysis of Climate Variability of Homogeneous Regions of Rainfall Anomalies in Southeast South America (SESA)

International Journal of Climatology, EarlyView.
We studied rainfall variability and cyclicity in six Homogeneous Regions of Rainfall Anomalies (HRRA) in Southeast South America (SESA) from 1961 to 2020 to understand the occurrence of droughts and above‐average rainfall. We use a continental analysis scale, focusing on seasonal, interannual, and interdecadal cycles, and their association with modes ...
Tainã Costa Peres, Francisco Eliseu Aquino, Denilson Ribeiro Viana, Éder Leandro Bayer Maier, Pedro Peixeira Valente   +4 more
wiley   +1 more source

Evaluation of satellite-based sea surface salinity derived from two distinct spectral domains over the coastal waters of the St. Lawrence Estuary and Gulf

Frontiers in Marine Science
Brightness temperature is operationally used to retrieve sea surface salinity (TB-SSS) over the global ocean, but is contaminated by land and sea ice in close proximity.
Julien Laliberté, Guillaume Guénard, Jacqueline Dumas, Peter S. Galbraith, Sarah Hall, David S. Trossman, Steve Vissault   +6 more
doaj   +1 more source

Assessing Phytoplankton Bloom Phenology in Upwelling-Influenced Regions Using Ocean Color Remote Sensing

, 2021
Phytoplankton bloom phenology studies are fundamental for the understanding of marine ecosystems. Mismatches between fish spawning and plankton peak biomass will become more frequent with climate change, highlighting the need for thorough phenology ...
Afonso Ferreira, Vanda Brotas, Ana C. Brito, Carla Palma, Carlos Borges   +4 more
core   +1 more source

Degradation of Seasonally Frozen Ground in the Three–River Source Region and Its Correlation Impact Within Precipitation–Runoff Process

International Journal of Climatology, EarlyView.
This study reveals how climate change alters the water cycle in the Three Rivers Source region by degrading its important ‘solid groundwater’ (seasonally frozen ground). We found that runoff response varies by watershed and the role of permafrost decreases sharply, making water supply more dependent on rainfall and becoming increasingly vulnerable ...
Chenchen Ren, Xiangde Xu, Jieru Ma, Bingrong Zhou, Na Dong, Wenyue Cai, Chunzhu Wang   +6 more
wiley   +1 more source

Superpixel Segmentation Method Based on Foreground–Background Separation and Independent Multicycle Labeling

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Accurate superpixel segmentation of ocean remote sensing data plays a crucial role in the success of monitoring the changes on the ocean surface. Recently, so many superpixel segmentation methods have attracted much attention to ocean remote sensing ...
Qianna Cui, Haiwei Pan, Kejia Zhang
doaj   +1 more source

Verification of aerosol models for satellite ocean color remote sensing [PDF]

Journal of Geophysical Research: Oceans, 1998
Direct atmospheric transmittance and sky radiance were measured spectrally at the coastal site of Scripps Institution of Oceanography pier in La Jolla, California, during the winters of 1993 and 1994. Direct atmospheric transmittance was also measured aboard R/V Wecoma and on Catalina Island during the 1994 California Cooperative Oceanic Fisheries ...
Myriam Schwindling, Pierre‐Yves Deschamps, Robert Frouin   +2 more
openaire   +1 more source