Satellite-derived estimates of ocean color variables are available for several decades now and allow performing studies the long-term changes occurred in an ecosystem. A daily, gap-free analysis chlorophyll (CHL) suspended particulate matter (SPM, indicative light availability subsurface) at 1 km resolution over Greater North Sea during period 1998–2020 is presented. Interannual described, with...

In Europe, increasing political interest drives the investigation into the spatial aspects of water quality measurements. Additionally, unprecedented information on patterns in chlorophyll (CHL) and suspended particulate matter (SPM, also known as total suspended matter TSM) concentrations in coastal and marine ecosystems can be discerned from long-term hyperspectral data from ocean colour sens...

Suspended particulate matter (SPM) is one of the dominant water constituents in inland and coastal waters, and SPM concnetration (CSPM) is a key parameter describing water quality. This study, using in-situ spectral and CSPM measurements as well as Sentinel 2 Multispectral Imager (MSI) images, aimed to develop CSPM retrieval models and further to estimate the CSPM values of Poyang Lake, China. ...

At the Blankaart Water Production Center, a reservoir containing 3 million m3 of raw surface water acts as first biologic treatment step before further processing to drinking water. Over past decade, severe algal blooms have occurred in reservoir, hampering production. Therefore, strategies (e.g., injection algaecide) been looked at prevent these from happening or try control them. In this cont...

Suspended particulate matter (SPM) was collected along the Amazon River in the central Amazon basin and in three tributaries during the rising water (RW), high water (HW), falling water (FW) and low water (LW) season. Changes in the concentration and the distribution of branched glycerol dialkyl glycerol tetraethers (brGDGTs), i.e., the methylation index of branched tetraethers (MBT) and the cy...

In the framework of GreenEdge Project (whose general objective is to understand dynamic phytoplankton spring bloom in Arctic Ocean), lipid composition and viability stress state bacteria were monitored sea ice suspended particulate matter (SPM) samples collected 2016 along a transect from open water Baffin Bay (Arctic Ocean). Lipid analyses confirmed dominance diatoms bottommost layer suggested...

The formation and transformation of secondary minerals in areas affected by neutralized acid mine drainage (AMD) determine the behavior toxic elements. To better understand binding form elements minerals, we focused on distribution precipitates heavy metals AMD near a typical Cu-polymetallic deposit located central Tibet. Compared to background values, average metal (As, Cu, Co, Mo, Pb, Zn) con...

The environmental conditions in estuaries display distinct variability along the river-ocean mixing continuum from turbid, eutrophic freshwater to clear, oligotrophic offshore oceanic water. In order understand effects of suspended particulate matter (SPM), nutrient, and salinity on phytoplankton growth, this study investigated response a harmful dinoflagellate ( Amphidinium carterae Hulburt) e...

Hydro-sedimentary numerical models have been widely employed to derive suspended particulate matter (SPM) concentrations in coastal and estuarine waters. These hydro-sedimentary models are computationally and technically expensive in nature. Here we have used a computationally less-expensive, well-established methodology of self-organizing maps (SOMs) along with a hidden Markov model (HMM) to d...

This study was carried out with the aim of evaluating the spatial variation of the water quality in the Itajaí-Açú River estuary. Seven stations along the estuary were monitored on a weekly basis, from October 2003 to December 2004, plus two stations in tributaries (Itajaí-Mirim River, the main tributary, and one reference station). This monitoring included measurements of salinity, pH, dissolv...