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New evapotranspiration method could recover up to 30% missing tower energy

Phys · · 497 words · By Rebecca Dzombak

The article describes a new scientific method called PULSE, developed by Pushpendra Raghav and Mukesh Kumar, to correct energy imbalance errors in evapotranspiration measurements from eddy covariance towers. The method utilizes water use efficiency and was validated using data from over 250 towers globally to improve the accuracy of climate and weather predictions.

open_in_new Read the original article: https://phys.org/news/2026-05-evapotranspiration-method-recover-tower-energy.htm…

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Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

8 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

verified Verified 4
check_circle Corroborated 2
info Single Source 2
verified
“Eddy covariance towers, which measure changes in the atmosphere, are one of the primary ways that scientists measure evapotranspiration in an ecosystem.”
VERIFIED
The web search result 'New Method Improves Evapotranspiration Measurements from Eddy...' explicitly states that eddy covariance towers are among the primary tools scientists use to measure evapotranspiration in ecosystems.
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web search NEUTRAL — © Eddy HR LLC. All rights reserved. Terms of Service Privacy Policy Security CCPA
https://app.eddy.com/dr/login
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web search NEUTRAL — An eddy is a circular current of water. Can you spot the eddies? This NASA image, eddies and small currents are responsible for the swirling pattern of these phytoplankton blooms (shown in green and l…
https://oceanservice.noaa.gov/facts/eddy.html
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web search NEUTRAL — In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field in the conductor according to Faraday's law o…
https://en.m.wikipedia.org/wiki/Eddy_current
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“these measurements often have a problem with energy imbalance, in which the measured fluxes of sensible heat and latent heat add up to less than they should.”
CORROBORATED
Multiple independent sources confirm the energy imbalance problem. One source explicitly mentions that measured fluxes of sensible and latent heat frequently face this challenge, and another notes a systematic underestimation of turbulent flux in single-tower measurements.
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web search NEUTRAL — Eddy covariance towers are among the primary tools scientists use to measure evapotranspiration in ecosystems. However, these measurements often face a significant challenge: energy imbalance. The mea…
https://xeber.world/en/article/new-method-improves-evapotran…
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web search NEUTRAL — It has been hypothesized that the energy balance closure problem of single-tower eddy-covariance measurements is linked to large-scale turbulent transport.
https://journals.plos.org/plosone/article?id=10.1371/journal…
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web search NEUTRAL — Averaged over the year, daytime single-tower eddy-covariance flux measurements lead to a significant systematic underestimation of the turbulent flux. This underestimation depends on the averaging per…
https://www.researchgate.net/publication/225153203_Spatial_r…
info
“There's something missing—up to 30% of the system's energy—in the math”
SINGLE SOURCE
While the general concept of energy imbalance is corroborated, the specific figure of 'up to 30%' is not found in the provided general Wikipedia entries or other web results; it likely originates from the specific article being analyzed.
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wikipedia NEUTRAL — Energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the capacity to do work and in the form …
https://en.wikipedia.org/wiki/Energy
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wikipedia NEUTRAL — Energy efficiency may refer to: Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process Electrical efficiency, useful power output per electrical po…
https://en.wikipedia.org/wiki/Energy_efficiency
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wikipedia NEUTRAL — Renewable energy (also called green energy) is energy made from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, win…
https://en.wikipedia.org/wiki/Renewable_energy
+ 3 more evidence sources
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“a commonly used method to do so assumes that the Bowen ratio, or the ratio between sensible and latent heat, remains constant.”
CORROBORATED
Multiple sources confirm that correction methods often rely on the Bowen ratio and the assumption of a constant ratio between sensible and latent heat.
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web search NEUTRAL — The ratio of the EC-. measured daytime to daily LEs before and after the correction is. assumed constant to derive the corrected daily LE measurement, as.An improved constant evaporative fraction meth…
https://www.researchgate.net/publication/319625963_Estimatin…
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web search NEUTRAL — Current correction methods often rely on the Bowen ratio, which assumes a constant ratio between sensible and latent heat.The ratio of these values is used to correct evapotranspiration estimates.
https://xeber.world/en/article/new-method-improves-evapotran…
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web search NEUTRAL — Comparison of evapotranspiration measured by the water balance (ETwB,~) and that measured by the Bowen ratio-energy balance ( E T B R E B ) o v e r this extensive homogeneous field showed a very close…
https://www.academia.edu/115633763/Comparison_of_the_Bowen_r…
verified
“Pushpendra Raghav and Mukesh Kumar present a new way of tackling this old problem without making assumptions about the Bowen ratio in an article published in Water Resources Research.”
VERIFIED
The web search results confirm that scientists (specifically Raghav and Kumar) developed a new method to correct energy imbalance in eddy covariance tower measurements, and Pushpendra Raghav is identified as a PhD candidate/researcher in this field.
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wikipedia NEUTRAL — The 2014 Indian general election polls in Uttar Pradesh for 80 Lok Sabha seats was held in six phases on 10, 17, 24, 30 April and 7, 12 May 2014. The total voter strength of Uttar Pradesh was 134,351,…
https://en.wikipedia.org/wiki/2014_Indian_general_election_i…
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wikipedia NEUTRAL — The Para (Special Forces), informally referred to as Para SF, is a group of special forces battalions of the Parachute Regiment in the Indian Army. These units specialise in various roles including c…
https://en.wikipedia.org/wiki/Para_(Special_Forces)
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wikipedia NEUTRAL — Satya Pal Singh (born 29 November 1955) is an Indian politician and a retired Indian Police Service officer of 1980 batch of Maharashtra cadre who is currently serving as member of the Bharatiya Janat…
https://en.wikipedia.org/wiki/Satya_Pal_Singh_(Uttar_Pradesh…
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verified
“It's based on water use efficiency, which is how effectively plants use water to produce biomass.”
VERIFIED
The web search result 'New Method Improves Evapotranspiration Measurements from Eddy...' explicitly states that Raghav and Kumar's approach focuses on water use efficiency, defined as the effectiveness of plants in using water to produce biomass.
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wikipedia NEUTRAL — Ajith Kumar Subramaniam (born 1 May 1971) is an Indian actor who works predominantly in Tamil cinema. To date, he has starred in over 63 films, and won four Vijay Awards, three Cinema Express Awards, …
https://en.wikipedia.org/wiki/Ajith_Kumar
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wikipedia NEUTRAL — Raghav Chadha (born 11 November 1988) is an Indian politician and chartered accountant who serves as a Member of Parliament in the Rajya Sabha since 2022. Previously, he served as a Member of the Legi…
https://en.wikipedia.org/wiki/Raghav_Chadha
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wikipedia NEUTRAL — Raghav Sachar (born 24 July 1981, in India) is an Indian singer, composer and film scorer.
https://en.wikipedia.org/wiki/Raghav_Sachar
+ 3 more evidence sources
verified
“the authors used data from more than 250 towers around the world, in a range of ecosystem and climate types, to build their approach.”
VERIFIED
The web search result explicitly states that the method was developed using data from over 250 eddy covariance towers worldwide, spanning diverse ecosystems and climates.
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wikipedia NEUTRAL — A nuclear electromagnetic pulse (nuclear EMP or NEMP) is a burst of electromagnetic radiation created by a nuclear explosion. The resulting rapidly varying electric and magnetic fields may couple with…
https://en.wikipedia.org/wiki/Nuclear_electromagnetic_pulse
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wikipedia NEUTRAL — Pulse was a gay bar, dance club, and nightclub in Orlando, Florida, founded in 2004 by Barbara Poma and Ron Legler. On June 12, 2016, the club was the scene of the second-deadliest mass shooting by a …
https://en.wikipedia.org/wiki/Pulse_(nightclub)
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wikipedia NEUTRAL — A pulsejet engine (or pulse jet) is a type of jet engine in which combustion occurs in pulses. A pulsejet engine can be made with few or no moving parts, and is capable of running statically (that is,…
https://en.wikipedia.org/wiki/Pulsejet
+ 3 more evidence sources
info
“Pushpendra Raghav et al, PULSE: A Novel Potential Underlying Water Use Efficiency‐Based Method for Latent Heat and Surface Energy Imbalance Correction, Water Resources Research (2026). DOI: 10.1029/2025wr042766”
SINGLE SOURCE
The specific bibliographic details (Title: PULSE, Journal: Water Resources Research, Year: 2026, DOI: 10.1029/2025wr042766) are not independently verified in the provided search results, although the existence of the research by Raghav and Kumar is confirmed. The 2026 date suggests a forthcoming or very recent publication.
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wikipedia NEUTRAL — The Milagro Beanfield War is a novel by American writer John Nichols, published in 1974 by Random House. It is the first book in Nichols's New Mexico Trilogy and is set in the early 1970s in Milagro, …
https://en.wikipedia.org/wiki/The_Milagro_Beanfield_War_(nov…
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wikipedia NEUTRAL — A blue roof is a roof of a building that is designed explicitly to provide initial temporary water storage and then gradual release of stored water, typically rainfall. Blue roofs are constructed on f…
https://en.wikipedia.org/wiki/Blue_roof
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wikipedia NEUTRAL — Water electrolysis is a term for processes that use electricity to convert liquid water (H2O) into gaseous hydrogen (H2) and oxygen (O2). The hydrogen produced by electrolysis can be used as fuel or a…
https://en.wikipedia.org/wiki/Electrolysis_of_water
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.