The Global Precipitation Measurement (GPM) Mission

Kidd, Christopher; Takayabu, Yukari N.; Skofronick-Jackson, Gail; Huffman, George J.; Braun, Scott A.; Kubota, Takuji; Turk, F. Joseph

doi:10.1007/978-3-030-24568-9_1

Cited by 23 publications

(18 citation statements)

References 64 publications

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“…3g), suggesting the entrainment of anthropogenic emissions (Sect. 3.3) (Cheng et al, 2013;Hatakeyama et al, , 2004Kim et al, 2009;Wang et al, 2016). Depicted in Fig.…”

Section: Monsoon Transitionmentioning

confidence: 99%

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

et al. 2021

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Abstract. The tropical Northwest Pacific (TNWP) is a receptor for pollution sources throughout Asia and is highly susceptible to climate change, making it imperative to understand long-range transport in this complex aerosol-meteorological environment. Measurements from the NASA Cloud, Aerosol, and Monsoon Processes Philippines Experiment (CAMP2Ex; 24 August to 5 October 2019) and back trajectories from the National Oceanic and Atmospheric Administration Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT) were used to examine transport into the TNWP from the Maritime Continent (MC), peninsular Southeast Asia (PSEA), East Asia (EA), and the West Pacific (WP). A mid-campaign monsoon shift on 20 September 2019 led to distinct transport patterns between the southwest monsoon (SWM; before 20 September) and monsoon transition (MT; after 20 September). During the SWM, long-range transport was a function of southwesterly winds and cyclones over the South China Sea. Low- (high-) altitude air generally came from MC (PSEA), implying distinct aerosol processing related to convection and perhaps wind shear. The MT saw transport from EA and WP, driven by Pacific northeasterly winds, continental anticyclones, and cyclones over the East China Sea. Composition of transported air differed by emission source and accumulated precipitation along trajectories (APT). MC air was characterized by biomass burning tracers while major components of EA air pointed to Asian outflow and secondary formation. Convective scavenging of PSEA air was evidenced by considerable vertical differences between aerosol species but not trace gases, as well as notably higher APT and smaller particles than other regions. Finally, we observed a possible wet scavenging mechanism acting on MC air aloft that was not strictly linked to precipitation. These results are important for understanding the transport and processing of air masses with further implications for modeling aerosol lifecycles and guiding international policymaking to public health and climate, particularly during the SWM and MT.

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“…3g), suggesting the entrainment of anthropogenic emissions (Sect. 3.3) (Cheng et al, 2013;Hatakeyama et al, , 2004Kim et al, 2009;Wang et al, 2016). Depicted in Fig.…”

Section: Monsoon Transitionmentioning

confidence: 99%

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

et al. 2021

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“…The Global Precipitation Measurement (GPM) mission's Core Observatory (CO), jointly operated by the National Aeronautics and Space Administration (NASA) and the Japanese Aerospace Exploration Agency (JAXA), was launched in February 2014 (Hou et al, 2014;Skofronick-Jackson et al, 2017, 2018Kidd et al, 2020). The satellite is the successor to NASA and JAXA's first precipitation-measuring satellite, the Tropical Rainfall Measuring Mission (TRMM; Simpson et al, 1996;Kummerow et al, 1998), which provided a 17-year record of tropical and subtropical precipitation.…”

Section: The Global Precipitation Measurement Mission's Core Observatorymentioning

confidence: 99%

The NASA‐JAXA Global Precipitation Measurement mission – part I: New frontiers in precipitation

Watters

Battaglia

2020

Weather

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The Global Precipitation Measurement (GPM) Core Observatory measuring over a mid‐latitude storm. The red, white, magenta, maroon and blue lines indicate the flight path, satellite altitude, GPM Microwave Imager swath, Dual‐frequency Precipitation Radar (DPR) Ku‐band (KuPR) swath and DPR Ka‐band (KaPR) swath, respectively. The rainfall is heaviest where red and lightest where dark blue; 3‐dimensional measurements are only available from the DPR segment of the swath. Credit: NASA's Goddard Space Flight Center Scientific Visualization Studio; adapted from original image.

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“…The key advantage of satellite‐based precipitation measurements over ground‐based in situ or radar measurements is that they can deliver frequent and spatially continuous measurements, although multiple satellites (Tapiador et al, 2012 ) with a variety of sensors and orbits (Ashouri et al, 2015 ) are required to provide global coverage. For example, the satellite products used in this analysis incorporate a fleet of geostationary satellites in addition to a single low Earth orbit reference satellite (Kidd et al, 2020 ). Many of the challenges associated with satellite‐based precipitation measurement are related to sensor calibration and bias‐correction relative to ground‐based measurements (Ebert, 2007 ), as well as the development of algorithms for merging measurements from diverse sources (Huffman et al, 2007 ; Skofronick‐Jackson et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

A multi‐sensor evaluation of precipitation uncertainty for landslide‐triggering storm events

Culler

Badger

Minear

et al. 2021

Hydrological Processes

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Extreme precipitation can have profound consequences for communities, resulting in natural hazards such as rainfall-triggered landslides that cause casualties and extensive property damage. A key challenge to understanding and predicting rainfall-triggered landslides comes from observational uncertainties in the depth and intensity of precipitation preceding the event. Practitioners and researchers must select from a wide range of precipitation products, often with little guidance. Here we evaluate the degree of precipitation uncertainty across multiple precipitation products for a large set of landslide-triggering storm events and investigate the impact of these uncertainties on predicted landslide probability using published intensity-duration thresholds. The average intensity, peak intensity, duration, and NOAA-Atlas return periods are compared ahead of 177 reported landslides across the continental United States and Canada. Precipitation data are taken from four products that cover disparate measurement methods: near real-time and post-processed satellite (IMERG), radar (MRMS), and gauge-based (NLDAS-2). Landslide-triggering precipitation was found to vary widely across precipitation products with the depth of individual storm events diverging by as much as 296 mm with an average range of 51 mm. Peak intensity measurements, which are typically influential in triggering landslides, were also highly variable with an average range of 7.8 mm/h and as much as 57 mm/h. The two products more reliant upon ground-based observations (MRMS and NLDAS-2) performed better at identifying landslides according to published intensity-duration storm thresholds, but all products exhibited hit ratios of greater than 0.56. A greater proportion of landslides were predicted when including only manually verified landslide locations. We recommend practitioners consider low-latency products like MRMS for investigating landslides, given their near-real time data availability and good performance in detecting landslides. Practitioners would be well-served considering more than one product as a way to confirm intense storm signals and minimize the influence of noise and false alarms.

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The Global Precipitation Measurement (GPM) Mission

Cited by 23 publications

References 64 publications

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

The NASA‐JAXA Global Precipitation Measurement mission – part I: New frontiers in precipitation

A multi‐sensor evaluation of precipitation uncertainty for landslide‐triggering storm events

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The Global Precipitation Measurement (GPM) Mission

Cited by 23 publications

References 64 publications

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP&lt;sup&gt;2&lt;/sup&gt;Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP&lt;sup&gt;2&lt;/sup&gt;Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

The NASA‐JAXA Global Precipitation Measurement mission – part I: New frontiers in precipitation

A multi‐sensor evaluation of precipitation uncertainty for landslide‐triggering storm events

Contact Info

Product

Resources

About

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection

Measurement report: Long-range transport patterns into the tropical northwest Pacific during the CAMP<sup>2</sup>Ex aircraft campaign: chemical composition, size distributions, and the impact of convection