@Article{SousaFonsBend:2022:StCaSo,
author = "Sousa, Marionei Fomaca de and Fonseca, Leila Maria Garcia and
Bendini, Hugo do Nascimento",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Estimation of Water Use in Center Pivot Irrigation Using
Evapotranspiration Time Series Derived by Landsat: A Study Case in
a Southeastern Region of the Brazilian Savanna",
journal = "Remote Sensing",
year = "2022",
volume = "14",
number = "23",
pages = "e5929",
month = "Dec.",
keywords = "water resources, remote sensing, Landsat, SSEBop-Br model, crop
water use, irrigation.",
abstract = "In Brazil, irrigated agriculture is responsible for 46% of
withdrawals of water bodies and 67% of use concerning the total
water abstracted volume, representing the most significant
consumptive use in the country. Understanding how different crops
use water over time is essential for planning and managing water
allocation, water rights, and farming production. In this work, we
propose a methodology to estimate water used in agriculture
irrigated by center pivots in the municipality of Itobi, Sao
Paulo, in the Brazilian Savanna (known as Cerrado), which has
strong potential for agricultural and livestock production. The
methodology proposed for the water use estimate is based on
mapping crops irrigated by center pivots for the 2015/2016 crop
year and actual evapotranspiration (ETa). ETa is derived from the
Operational Simplified Surface Energy Balance model (SSEBop) and
parameterized for edaphoclimatic conditions in Brazil (SSEBop-Br).
Three meteorological data sources (INMET, GLDAS, CFSv2) were
tested for estimating ETa. The water use was estimated for each
meteorological data source, relating the average irrigation
balance and the total area for each crop identified in the map. We
evaluated the models for each crop present in the center pivots
through global accuracy and f1-score metrics, and f1-score was
more significant than 0.9 for all crops. The potato was the crop
that consumed the most water in irrigation, followed by soy crops,
beans, carrots, and onions, considering the three meteorological
data sources. The total water volume consumed by center pivots in
the municipality of Itobi in the 2015/2016 agricultural year for
each meteorological data source was 3.2 million m(3) (INMET), 2.5
million m(3); (GLDAS), and 1.8 million m(3) (CFSv2).",
doi = "10.3390/rs14235929",
url = "http://dx.doi.org/10.3390/rs14235929",
issn = "2072-4292",
language = "en",
targetfile = "remotesensing-14-05929.pdf",
urlaccessdate = "23 maio 2024"
}