@InProceedings{BarbosaFerrArauNovo:2014:BiChTw,
author = "Barbosa, Cl{\'a}udio Clemente Faria and Ferreira, Renato Martins
Passos and Araujo, Carlos and Novo, Evlyn M{\'a}rcia Leao de
Moraes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Bio-optical characterization of two brazilian hydroelectric
reservoirs as support to understand the carbon budget in
hydroelectric reservoirs",
year = "2014",
organization = "2014. IEEE International Geoscience and Remote Sensing Symposium
(IGARSS)",
keywords = "inland water, dissolved organic matter, lakes, inherent optical
properties, apparent optical properties.",
abstract = "This study aims at carrying out a bio-optical characterization of
two Brazilian hydroelectric reservoirs as a support to current
investigation regarding their net carbon budget. This
characterization is a key step for both (1) developing bio-optical
models to retrieve water constituents by remote sensing and (2)
describing the availability of light for photosynthesis, whose
information is essential to understand biogeochemical processes
related to emissions of methane and carbon dioxide in aquatic
systems. Twenty-two sampling stations were profiled at each
reservoir, using an attenuation-absorption meter (ACS-WET Labs)
and a set of six Ramses radiometers (TriOS). Water samples were
acquired at each sampling station for determining concentrations
of optically active constituents. The results showed spatial
heterogeneity in the concentration of constituents which ranged
from 1.17-40.45ugL-1 for chlorophyll-a, 0.26-20.41 mgL-1 for total
suspended sediments, 0.93-9.48 mgL-1 for dissolved total carbon
and 0.93-3.87 m-1 for CDOM absorption. The diffuse attenuation
coefficient (Kd(PAR)), ranged from 0.35 to 4.03 m-1 while euphotic
depth (Zeu (1%)) ranged from 1.14 to 13.06 m.",
conference-location = "Quebec, Canada",
conference-year = "13 - 18 jul., 2014",
isbn = "9781479957750",
label = "self-archiving-INPE-MCTI-GOV-BR",
language = "en",
urlaccessdate = "09 maio 2024"
}