Crowdsourced Data Reveal Shortcomings in Precipitation Phase Products for Rain and Snow Partitioning DOI Creative Commons
Guo Yu, Keith S. Jennings, Benjamin J. Hatchett

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(24)

Published: Dec. 23, 2024

Abstract Reanalysis products support our understanding of how the precipitation phase influences hydrology across scales. However, a lack validation data hinders evaluation reanalysis‐estimated phase. In this study, we used novel dataset from Mountain Rain or Snow (MRoS) citizen science project to compare 39,680 MRoS observations January 2020 July 2023 conterminous United States (CONUS) assess three products. These included Global Precipitation Measurement (GPM) mission Integrated Multi‐satellitE Retrievals for GPM (IMERG), Modern‐Era Retrospective Analysis Research and Applications (MERRA‐2), North American Land Data Assimilation System (NLDAS‐2). The overall critical success indices detecting rainfall (snowfall) IMERG, MERRA‐2, NLDAS‐2 were 0.51 (0.79), 0.49 (0.77), 0.54 (0.53), respectively. show that IMERG MERRA‐2 reasonably classify snowfall, whereas overestimates rainfall. All performed poorly in subfreezing snowfall above 2°C. Therefore, crowdsourced provides unique source improve capabilities reanalysis

Language: Английский

The 2023 Türkiye-Syria earthquake disaster was exacerbated by an atmospheric river DOI Creative Commons
Tolga Görüm, Deniz Bozkurt, Oliver Korup

et al.

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Feb. 26, 2025

Language: Английский

Citations

0
Runoff contribution of spring snowmelt in the source region of the Yangtze River and its variation characteristics DOI Creative Commons

Zixiang Li,

Weixin Xu,

Hongyi Li

et al.

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 58, P. 102295 - 102295

Published: March 11, 2025

Language: Английский

Citations

0
On Risk of Rain on Snow Over High‐Latitude Coastal Areas in North America DOI Creative Commons
Azharuddin Mohammed, Ardeshir Ebtehaj,

Judah Cohen

et al.

Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(9)

Published: April 29, 2025

Abstract Extreme floods and landslides in high‐latitude watersheds have been associated with rain‐on‐snow (ROS) events. Yet, the risks of changing precipitation phases on a declining snowpack under warming climate remain unclear. Normalizing total annual duration ROS that seasonal snowpack, ERA5 data (1941–2023) show frequency high‐runoff events is characteristic feature coastal zones, particularly over coasts south‐central Alaska southern Newfoundland. Total rainfall accumulation per has increased across western mountain ranges, Olympic Mountains experiencing more than 40 mm additional past eight decades, followed by Sierra Nevada. These trends could drive an 8% increase extremes (e.g., 10 for 6 hr storm 15‐year return period), highlighting need resilient flood control systems cities.

Language: Английский

Citations

0
Crowdsourced Data Reveal Shortcomings in Precipitation Phase Products for Rain and Snow Partitioning DOI Creative Commons
Guo Yu, Keith S. Jennings, Benjamin J. Hatchett

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(24)

Published: Dec. 23, 2024

Abstract Reanalysis products support our understanding of how the precipitation phase influences hydrology across scales. However, a lack validation data hinders evaluation reanalysis‐estimated phase. In this study, we used novel dataset from Mountain Rain or Snow (MRoS) citizen science project to compare 39,680 MRoS observations January 2020 July 2023 conterminous United States (CONUS) assess three products. These included Global Precipitation Measurement (GPM) mission Integrated Multi‐satellitE Retrievals for GPM (IMERG), Modern‐Era Retrospective Analysis Research and Applications (MERRA‐2), North American Land Data Assimilation System (NLDAS‐2). The overall critical success indices detecting rainfall (snowfall) IMERG, MERRA‐2, NLDAS‐2 were 0.51 (0.79), 0.49 (0.77), 0.54 (0.53), respectively. show that IMERG MERRA‐2 reasonably classify snowfall, whereas overestimates rainfall. All performed poorly in subfreezing snowfall above 2°C. Therefore, crowdsourced provides unique source improve capabilities reanalysis

Language: Английский

Citations

1