zooplankton composition, biodiversity as well as physiological processes. Large scale observations of phytoplankton surface distributions are done via remote sensing. In addition, experiments with key species are [...] temperature increase and acidification of the Arctic Ocean. Team Dr. Eva-Maria Nöthig (coordinator, phytoplankton ecology & particle flux) Prof. Dr. Astrid Bracher (PI, remote sensing) Prof. Dr. Anja Engel (PI

thus shape the composition of phytoplankton communities [16]. Phosphate (PO4) is another vital nutrient for phytoplankton, and its concentration in water influences phytoplankton diversity and productivity [...] including phytoplankton [23]. Sea surface salinity (SSS) and mixed layer depth (MLD) are important physical pa- rameters that affect phytoplankton distribution. Salinity can influence phytoplankton physiology [...] increase in open-water habitat have led to changes in phytoplankton bloom dynamics, including earlier blooms and later termination of it [3]. Phytoplankton dynamics influence the entire marine food web, affecting

B., Organelli E. (2022): Application of remote sensing to monitor phytoplankton diversity 7th chapter in “Advances in Phytoplankton Ecology” , Section 2 “New technologies for remote and automatic monitoring [...] SERVATIONS_009_032/INFORMATION 6. Bracher A., Wiegmann S., Xi H. (2020): Phytoplankton pigment concentration and phytoplankton groups measured on water samples obtained during POLARSTERN cruise PS113 in [...] A. (2021) Quantifying Phytoplankton Diversity from Space. FCUL Science Seminar, University of Lisbon, 4 Nov 2021, Lisbon, Portugal. Invited Oral. 2) Bracher A. (2021) Phytoplankton Diversity from Space

s (phycocyanin). The phytoplankton absorption spectrum results from the combination of the pigments present in the phytoplankton. Thus, the spectral signature of the phytoplankton absorption (aph) varies [...] 1). Table 2.1. Phytoplankton functional types and their respective diagnostic pigments (Hirata et al. 2011; IOCCG 2014; Vidussi et al. 2001). Phytoplankton Functional Types Phytoplankton pigments / Diagnostic [...] ........... 37 2.2.2 Phytoplankton blooms .................................................................................................. 40 2.2.2.1 Hypothesis on phytoplankton bloom initiation ...

s (phycocyanin). The phytoplankton absorption spectrum results from the combination of the pigments present in the phytoplankton. Thus, the spectral signature of the phytoplankton absorption (aph) varies [...] 1). Table 2.1. Phytoplankton functional types and their respective diagnostic pigments (Hirata et al. 2011; IOCCG 2014; Vidussi et al. 2001). Phytoplankton Functional Types Phytoplankton pigments / Diagnostic [...] ........... 37 2.2.2 Phytoplankton blooms .................................................................................................. 40 2.2.2.1 Hypothesis on phytoplankton bloom initiation ...

SynSenPFT Synergistic Exploitation of Hyper-and Multispectral Sentinel-Measurements to Determine Phytoplankton Functional Types (PFT) at Best Spatial and Temporal Resolution To overcome the short-comings of [...] temporal and spatial coverage), the project's objective is a substantial improvement of retrieving phytoplankton groups with defined accuracy and good spatial and temporal coverage. This shall be done by developing [...] Bracher A. (2017) SynSenPFT: ein globaler Datensatz zur Verteilung von funktionalen Gruppen von Phytoplankton im Ozean. REKLIM News und Forschungsthema des Monats November 2017. Pages 3-5 Prof. Dr. Astrid

assess the ocean optics especially in the open waters and identify directly the distribution of phytoplankton groups and other water constituents in these waters, we take in-situ water samples and direct [...] remote sensing data and the use of various methods to analyse composition of particles, especially phytoplankton, and coloured dissolved organic matter from optical measurements. The derived inherent optical [...] but can be processed as well by ocean color algorithms to derive geophysical quantities such as phytoplankton, colored dissolved organic matter, particle abundance and composition. The in-situ biooptical

inelastic processes: vibrational Raman scattering by water molecules (VRS), and fluorescence of phytoplankton pigments, mainly chlorophyll a, and colored dissolved organic matter (CDOM). Their effect on the [...] Here, we focus on the chlorophyll a fluorescence, which is directly linked to the physiology of phytoplankton or plant. When chlorophyll molecules absorb light, most of this energy is transformed into chemical [...] about chlorophyll fluorescence can be used to assess the productivity and physiological state of phytoplankton. In our retrieval, we evaluate the filling-in in SCIAMACHY data of the Fraunhofer line Fe I at

physik.uni-bremen.de Ocean color hyperspectral satellite observations of chl a fluorescence, phytoplankton functional types and light penetration depth with SCIAMACHY Aleksandra Wolanin, Bracher A., Dinter [...] 2 Overview ● Introduction ● PhytoDOAS Method ● Hyperspectral data from SCIAMACHY ● Results ● Phytoplankton functional types (PFTs) (Bracher BG et al. 2009, Sadeghi et al. OS 2012, Sadeghi et al. BG 2012) [...] until 520 nm ola@iup.physik.uni-bremen.de ola@iup.physik.uni-bremen.de 5 The PhytoDOAS phytoplankton functional types (PFTs) Bracher BG et al. 2009, Sadeghi et al. OS 2012 Mean Chl-a March 2007 SCIAMACHY

1.0 IUP-AWI Phytoplankton Functional Types Doc: SEOM-SynSenPFT-D2.1 Report on PhytoDOAS sensitivity and correction using RTM Date: 30 Oct 2015 SY-4Sci Synergy R & D Study 4: Phytoplankton Functional Types [...] Aerosol optical dept PCA Principle component analysis PFT Phytoplankton Functional Type PhytoDOAS DOAS applied for retrieval of phytoplankton biomass PMP Project Management Plan PSD Product Specification [...] D- 28359 Bremen, Germany Sy-4SciPFT-D2.1- SY-4Sci Synergy R & D Study 4: Version 1.0 IUP-AWI Phytoplankton Functional Types Doc: SEOM-SynSenPFT-D2.1 Report on PhytoDOAS sensitivity and correction using