Results 81 to 90 of about 3,196 (214)

Inter-Calibration of AMSU-A Window Channels

Remote Sensing, 2020
More than one decade of observations from the Advanced Microwave Sounding Unit-A (AMSU-A) onboard the polar-orbiting satellites NOAA-15 to NOAA-19 and European Meteorological Operational satellite program-A (MetOp-A) provided global information on ...
Wenze Yang, Huan Meng, Ralph R. Ferraro, Yong Chen   +3 more
doaj   +1 more source

Inter-calibration of polar imager solar channels using SEVIRI [PDF]

Atmospheric Measurement Techniques, 2013
Accurate calibration of satellite imagers is a prerequisite for using their measurements in climate applications. Here we present a method for the inter-calibration of geostationary and polar-orbiting imager solar channels based on regressions of ...
J. F. Meirink, R. A. Roebeling, P. Stammes   +2 more
doaj   +1 more source

Reference Database Curation Shapes the Trade‐Off Between Predictive Performance and Ecological Interpretability in eDNA‐Based Macroinvertebrate Bioassessment

Environmental DNA, Volume 8, Issue 5, September‐October 2026.
Taxonomy‐free eDNA OTUs achieved the highest water‐quality prediction accuracy but offered limited ecological interpretation. A curated regional macroinvertebrate barcode library reduced annotation‐related performance loss relative to NCBI and improved the interpretability of machine‐learning bioassessment.
Tianjin Sheng, Wenhui Yuan, Min Xu, Xiaohang Xu, Linshan Xie, Shanmei Zou, Thorsten Stoeck, Beixin Wang   +7 more
wiley   +1 more source

Evaluation of Satellite Rainfall Products for Nowcasting Over Southern Africa Using Rain‐Gauges and Lightning Data

Meteorological Applications, Volume 33, Issue 5, September/October 2026.
Three satellite‐based rainfall nowcasting products used in the WISER EWSA testbeds, CRR, IMERG‐HQ and the new machine‐learning‐based Rain over Africa (RoA), were evaluated against high‐resolution rain gauges, lightning observations and cloud‐top temperature in Zambia. While all products captured broad rainfall patterns, systematic biases remained.
Simon Ageet, John H. Marsham, Douglas J. Parker, Abhilash Singh, Christopher M. Taylor, Alexander J. Roberts, James Groves, Edson Nkonde, Adrià Amell   +8 more
wiley   +1 more source

Water Framework Directive Intercalibration Technical Report: Northern Lake Fish fauna ecological assessment methods

, 2014
One of the key actions identified by the Water Framework Directive (WFD; 2000/60/EC) is to develop ecological assessment tools and carry out a European intercalibration (IC) exercise.
HESTHAGEN Trygve, RASK M., KELLY F., HOLMGREN Kerstin, SAKSGÅRD Randi, OLIN Mikko, ROSELL Robert, POIKANE Sandra, DUNCAN Willie, KINNERBÄCK Anders, DUGUID Alistair, CONNOR Linda, HARRISON Andrew   +12 more
core   +2 more sources

Drivers of Dissolved Thorium Isotope Distributions Along the Adélie Land Margin, East Antarctica: The Roles of Reversible Scavenging, Conservative Transport, and Lithogenic Supply

Global Biogeochemical Cycles, Volume 40, Issue 9, September 2026.
Abstract In this study, we present a mix of full‐depth profiles and near‐bottom observations of dissolved 230Th and 232Th from the Adélie Land margin in East Antarctica, a key site of Antarctic Bottom Water (AABW) formation. We show that the distribution of dissolved Th isotopes in this region is governed by a combination of reversible scavenging ...
Thomas J. Williams, Andrea M. L. Davies, Pauline Latour, George H. Rowland, Zanna Chase, Taryn Noble, Ashley T. Townsend, Matthew Corkill, Andrew R. Bowie   +8 more
wiley   +1 more source

A simple index for assessing cumulative human impacts on mountain lakes

Limnology and Oceanography: Methods, Volume 24, Issue 8, August 2026.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez, Ignasi Arranz, Guillermo García‐Gómez, Javier Sánchez‐Hernández   +3 more
wiley   +1 more source

Mesonet‐Based Ground Validation of IMERG‐V07 and GSMaP‐V08 Over a Semi‐Arid Dryland Ecosystem in West Texas

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Climate change has caused highly uncertain precipitation regimes and associated hydrometeorological hazards over global drylands. Accurate precipitation measurements are vital for monitoring dryland ecohydrology. Satellite precipitation products (SPPs), including the Integrated Multi‐satellitE Retrievals for GPM (Global Precipitation ...
Diya Das, Sandip Pal, Eric C. Bruning, Brian Hirth   +3 more
wiley   +1 more source

eDNA‐Based Temporal Trajectories of Bacterial Communities in Salmon Farm Sediments: Disentangling Seasonal Variability From Aquaculture Impacts

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA metabarcoding and ecological trajectory analysis revealed that organic enrichment associated with salmon aquaculture exerted a substantially stronger influence on benthic bacterial assemblages than seasonal variability. Bacterial communities at the cage edge remained constrained and enrichment‐tolerant across production cycles ...
Mahshid Oladi, Adam Wyness, Thomas A. Wilding, Hans‐Werner Breiner, Thorsten Stoeck   +4 more
wiley   +1 more source

Strategic Micro‐Awards Train the Next Generation and Grow a Cross‐Disciplinary Scientific Community: The AGeS Program Example

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Strategic micro‐grant programs have tremendous scientific and educational value. Such programs are cost‐effective and can be leveraged to support student training and incentivize new cross‐disciplinary science. Over the last 12 years, the AGeS (Advancing Geochronology Science, Spaces, and Systems) initiative developed three proposal‐driven ...
R. M. Flowers, J. R. Arrowsmith
wiley   +1 more source