Remote Sensing and Modeling of Cyclone Monica near Peak Intensity

Durden, Stephen L.

doi:10.3390/atmos1010015

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…In real time, JTWC attributed an intensity of 155 knots to cyclone Winston (11P) on 20 February 2016. In a detailed study, Durden () estimated Monica at 160 knots.…”

Section: The Strongest Cyclones In the South Pacific Oceanmentioning

confidence: 99%

Extreme tropical cyclone activities in the southern Pacific Ocean

Hoarau¹,

Chalonge

Pirard³

et al. 2017

Intl Journal of Climatology

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“…In real time, JTWC attributed an intensity of 155 knots to cyclone Winston (11P) on 20 February 2016. In a detailed study, Durden () estimated Monica at 160 knots.…”

Section: The Strongest Cyclones In the South Pacific Oceanmentioning

confidence: 99%

Extreme tropical cyclone activities in the southern Pacific Ocean

Hoarau¹,

Chalonge

Pirard³

et al. 2017

Intl Journal of Climatology

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“…Finally, a real‐case scenario is studied to compare the various processes affecting storm surges. Tropical cyclone Monica (Durden, ) has been chosen for her high wind speed, low system pressure and high rainfall, which are the key storm surge effects investigated here. A validated atmospheric state is generated using WRF and is prescribed onto ROMS to investigate how various processes affect the storm surge.…”

Section: Introductionmentioning

confidence: 99%

Effect of extreme ocean precipitation on sea surface elevation and storm surges

Wong

Toumi

2016

Quart J Royal Meteoro Soc

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Ocean models that neglect mass and momentum contributions from precipitation can have a systematic bias in sea surface height (SSH). Here, a new rainfall scheme is introduced into the Regional Ocean Modelling System (ROMS) to incorporate the effects of precipitation mass. When precipitation is added to the sea surface, it spreads out via surface gravity waves that increase in propagation speed with increasing water depth. Over several days, the SSH increase due to the precipitation mass added created a geostrophic adjustment, generating anti-cyclonic geostrophic currents around the SSH increase. The transfer of momentum from precipitation to the sea surface, or rain stress, can also be important. In the case study of a real tropical cyclone, Monica passing North Australia, the effect of incorporating precipitation mass is compared with other processes affecting the storm surge: surface wind, inverse barometer effect and rain stress. The maximum SSH response is 170.6 cm for the wind effect, 61.5 cm for the inverse barometer effect, 7.5 cm for the effect of rain stress and 6.4 cm for the effect of rain mass. Each process has been shown to have different spatial influences. The effect of rain mass has a strong remote influence compared to the inverse barometer effect and the effect of rain stress. This is particularly seen in semi-enclosed bays

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Impacts of an extreme cyclone event on landscape-scale savanna fire, productivity and greenhouse gas emissions

Hutley

Evans

Beringer

et al. 2013

Environ. Res. Lett.

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North Australian tropical savanna accounts for 12% of the world's total savanna land cover. Accordingly, understanding processes that govern carbon, water and energy exchange within this biome is critical to global carbon and water budgeting. Climate and disturbances drive ecosystem carbon dynamics. Savanna ecosystems of the coastal and sub-coastal of north Australia experience a unique combination of climatic extremes and are in a state of near constant disturbance from fire events (1 in 3 years), storms resulting in windthrow (1 in 5-10 years) and mega-cyclones (1 in 500-1000 years). Critically, these disturbances occur over large areas creating a spatial and temporal mosaic of carbon sources and sinks. We quantify the impact on gross primary productivity (GPP) and fire occurrence from a tropical mega-cyclone, tropical Cyclone Monica (TC Monica), which affected 10 400 km 2 of savanna across north Australia, resulting in the mortality and severe structural damage to ∼140 million trees. We estimate a net carbon equivalent emission of 43 Tg of CO 2 -e using the moderate resolution imaging spectroradiometer (MODIS) GPP (MOD17A2) to quantify spatial and temporal patterns pre-and post-TC Monica. GPP was suppressed for four years after the event, equivalent to a loss of GPP of 0.5 Tg C over this period. On-ground fuel loads were estimated to potentially release 51.2 Mt CO 2 -e, equivalent to ∼10% of Australia's accountable greenhouse gas emissions. We present a simple carbon balance to examine the relative importance of frequency versus impact for a number of key disturbance processes such as fire, termite consumption and intense but infrequent mega-cyclones. Our estimates suggested that fire and termite consumption had a larger impact on Net Biome Productivity than infrequent mega-cyclones. We demonstrate the importance of understanding how climate variability and disturbance impacts savanna dynamics in the context of the increasing interest in using savanna landscapes for enhanced carbon sinks in emission offset schemes.

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Remote Sensing and Modeling of Cyclone Monica near Peak Intensity

Cited by 3 publications

References 34 publications

Extreme tropical cyclone activities in the southern Pacific Ocean

Extreme tropical cyclone activities in the southern Pacific Ocean

Effect of extreme ocean precipitation on sea surface elevation and storm surges

Impacts of an extreme cyclone event on landscape-scale savanna fire, productivity and greenhouse gas emissions

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