Acquiring unbiased rainfall duration and intensity data from tipping-bucket rain gauges: A new approach using synchronised acoustic recordings

Dunkerley, David

doi:10.1016/j.atmosres.2020.105055

Cited by 21 publications

(15 citation statements)

References 48 publications

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“…Intensity estimates can carry very significant bias as a result. There are ways in which true raining time (and hence intensity) can be recorded with much less bias, including acoustic methods that record the presence or absence of the sound produced by raindrop impact on a resonant surface (Dunkerley, 2020a) and thus allow T to be reliably identified, but these are not in common use.…”

Section: Introductionmentioning

confidence: 99%

Rainfall intensity in geomorphology: Challenges and opportunities

Dunkerley

2020

Progress in Physical Geography: Earth and Environment

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Rainfall arrival at the land surface drives or influences many geomorphic processes. These range from the mechanisms through which vegetation transforms rain into erosive gravity drops or stemflow, infiltration and water partitioning at the soil surface, the drop-impact sealing of soil surfaces, splash, sheet, and gully erosion, and triggering of the various forms of mass movement including landslides and debris flows. Rainfall intensity is a key influence on many of these mechanisms but is not a straightforward parameter to quantify, partly owing to the customary aggregation of rainfall data to hourly or other clock-time totals. This aggregation conceals intensity fluctuations including erosive ‘intensity bursts’ as well as the intermittency of rainfall. Nevertheless, much research shows that rainfall intensity over short time periods – 10–30 minutes – has great explanatory power. Much of our understanding of the influence of rainfall intensity is based on rainfall simulation experiments, but the value of the findings is limited because simulation is normally carried out using a high and constant rainfall intensity, quite unlike natural rainfall. This has limited our ability to build an understanding of the other important aspects of rainfall intensity, including, critically, its time variation and changed character among different environments – arid, temperate, or tropical. Thus, significant challenges and opportunities remain in the exploration of rainfall intensity in relation to geomorphology and geomorphic processes.

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Section: Introductionmentioning

confidence: 99%

Rainfall intensity in geomorphology: Challenges and opportunities

Dunkerley

2020

Progress in Physical Geography: Earth and Environment

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“…Because the microphone quality was too low, resulting in low-accuracy measurements, and because the recording devices were too bulky and too expensive, acoustic sensors have not been widely used. But parts have become cheaper and smaller and open-source electronics platforms, such as Arduino, have made it possible to design and build small and low-cost acoustic rainfall sensors (Trono et al, 2012;Dunkerley, 2020). The development of acoustic methods for recording rainfall intensity and occurrence is growing in popularity.…”

Section: Acoustic Rainfall Sensorsmentioning

confidence: 99%

Brief communication: the potential use of low-cost acoustic sensors in short-term urban flood warnings

Peleg

Torelló-Sentelles²,

Mariethoz³

et al. 2022

Preprint

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Abstract. Floods in urban areas are one of the most common natural hazards. Due to climate change enhancing extreme rainfall, and cities becoming larger and denser, the frequency, magnitude and impact of these events are expected to increase. Pluvial floods can occur in urban areas within minutes. A fast and reliable flood warning system should thus be implemented in flood-prone cities to warn the public of upcoming floods and save lives and reduce damage. The purpose of this brief communication is to discuss the potential implementation of low-cost acoustic rainfall sensors in short-term flood warning systems.

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“…The length of rain occurrences (in minutes, hours, and days) is determined mostly by the findings of automated rain gauges that record the time of day it rains (Dunkerley, 2020). When it comes to drainage design, rainfall length is often connected with concentration time.…”

Section: Rainfall In Last 10 Yearsmentioning

confidence: 99%

Changes in Rainfall and Climate Classification in South Sulawesi

Ridahwati

2021

JLL

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The study discuss about Changes in Rainfall and Climate Classification in South Sulawesi. The climate of the Earth is determined by the location of the sun in relation to the earth's surface. Geographical location influences the categorization of climate on our planet. The results of the study (1) Rainfall in Bone Regency has been classified as high rainfall intensity for the last 10 years; (2) Determination of climate classification can be done by processing rainfall data obtained from data before weighting, after weighting, ranking, and opportunity; (3) The climate classification according to Schmidt-Ferguson for Bone Regency has a B climate type, which is a humid subtropical climate; and (4) The climate classification according This is based on a comparison of the number of dry months (BK) and wet months (BB), from which the Q value is obtained, which is then used to determine the type of climate according to Schmidt-Ferguson; (4) Oldeman's climate classification for Bone Regency has a C1 climate type, which has the characteristics of planting lowland rice once a year and secondary crops twice a year; (5) Oldeman's climate classification for Bone Regency has a This is based on the number of Wet Months (BB) and Dry Months (BK) in a given year

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Acquiring unbiased rainfall duration and intensity data from tipping-bucket rain gauges: A new approach using synchronised acoustic recordings

Cited by 21 publications

References 48 publications

Rainfall intensity in geomorphology: Challenges and opportunities

Rainfall intensity in geomorphology: Challenges and opportunities

Brief communication: the potential use of low-cost acoustic sensors in short-term urban flood warnings

Changes in Rainfall and Climate Classification in South Sulawesi

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