armin hamidian’s Post

I am happy to share my publication "Impacts of Drought Severity and Frequency on Natural Vegetation Across Iran" has been published in #MDPI journal. https://lnkd.in/e5UtBdA4 #reasearch #Publication #MDPI #Drought #Iran

📣 Attention water researchers and practitioners! 💧 In September, SEI experts will host a 3-day training in WEAP, the integrated water modelling platform used by more than 50K users worldwide for water planning and research. No previous experience is required, but space is limited, so register today 📝 https://buff.ly/3zR0qU3 #WaterModelling #WaterResources #WaterPolicy #climate #drought #hydrology

Groundwater droughts are often not taken as seriously as meteorological droughts or agricultural droughts. One of the profound and far-reaching impacts of a groundwater drought is on the perenniality of a river, as groundwater feeds the rivers in their lean periods, sustaining their perennial environment. In this paper, led by Thallam Prashanth, we apply a novel framework using some newly proposed indices (PSAII, PRPI & SGWTI) to quantify the impact of groundwater drought on a river and other surface water bodies. The application of the framework to the Indian River Godavari shows that the river (or at least a major part of it) is becoming non-perennial and is being impacted by the groundwater drought in the basin. #hydrology #groundwater #drought #perennialrivers

🌧️ Today’s Rainfall at Meteorological Sub-Divisional Level: At a Glance 🌦️ .......................................................................................................... As we observe today's rainfall patterns across various meteorological sub-divisions, it’s fascinating to see nature's dynamic interplay unfold. From light to moderate rainfall marked in soothing greens which highlights regional variation of rainfall. How this matter? 1️⃣ Agricultural Planning: Farmers rely on rainfall data for timely sowing, irrigation and crop health management. Sub-divisional data ensures precision in resource allocation and advisory services. 2️⃣ Water Resource Management: Tracking daily rainfall helps authorities gauge water availability for reservoirs, drinking water and hydroelectric projects. 3️⃣ Disaster Preparedness: Identifying areas receiving heavy rainfall enables authorities to issue timely flood warnings and minimize damage. 4️⃣ Climate Analysis: Rainfall at the sub-divisional level forms a building block for long-term climate studies, aiding in understanding patterns and shifts in precipitation trends. The insights we gather today are not just numbers—they're a foundation for proactive decision-making and sustainable development. Let's harness this information to build resilience and empower communities. #RainfallData #WeatherInsights #SustainableDevelopment #ClimateAction #Linkedin #Connections #World 🌍 #Algorithm #Developers #Geospatial #Technology #Hydrology #Irrigation #Environment #Monitoring #Ecosystem

📣 Drought Update Energy and Environmental Affairs (EEA) Secretary Rebecca Tepper today raised the Cape Cod and Islands regions to a Level 1-Mild Drought and maintained the Level 3-Critical Drought declaration in the Western, Connecticut River Valley, Southeast, Central and Northeast regions. While the drought has not gotten worse in most of the state and the wildfire risk is currently reduced thanks to a few recent precipitation events, it will take time and much more precipitation to restore groundwater, streamflows, and reservoirs to their normal levels. Read more: https://lnkd.in/ex_a6Js

🌍 Opinion: When Rivers Run Low: The Unseen Impact of Dams and Hydrological Drought. In my latest piece for the Global Water Forum, I delve into the often-overlooked consequences of damming and hydrological droughts. Through the lens of the Apalachicola River in Florida, we see a microcosm of a global challenge – the transformation of vibrant rivers into vulnerable streams. This conversation goes beyond water scarcity; it's about recognizing our interconnected fate with the natural world. The impact on water ecosystems, biodiversity, and communities underscores a critical need for sustainable approaches to river management and dam construction. As we witness the ramifications on rivers worldwide, from the Mekong to the Nile, it's clear: our future hinges on harmony with nature, not dominance over it. Join me in exploring ways to sustain the lifeblood of our planet. Read more here: https://lnkd.in/dW-unZah #WaterConservation #SustainableDevelopment #EnvironmentalAwareness

Abstract : "Drought is a pervasive natural hazard, which can profoundly affect ecosystems and societies globally. To strengthen the global community’s resilience to droughts, a multi-dimensional understanding of global drought awareness is imperative. Here we investigate global drought awareness at local (awareness of local droughts in the affected country), remote (awareness of remote droughts in other countries), and global levels (awareness from non-exposed countries). This study uses relevant search activity volumes of a country to drought as a proxy of national-level drought awareness. We find that the recent decade has experienced no change in drought hazard over the globe, but the global community has been increasingly seeking information about drought online, that is, elevated awareness of the global community on drought. We further find that long-lasting droughts enhance local- and global-level awareness and high gross domestic product are associated with remote-level awareness. This study provides an observational evidence of global disparities in the awareness/interest regarding drought, underscoring a continuing role of European nations in enhancing global drought awareness." https://lnkd.in/eMupwyRH Disparity between global drought hazard and awareness Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea. Dar Murtaza Ahmad & Jonghun Kam 

In an interesting work, Vaibhav's recent article in Environmental Science and Pollution Research (Springer) identifies an alternate approach to capture flood inundation, hazards, and population exposure over large watersheds by utilizing geomorphic flood descriptors (GFDs) in a machine-learning environment. The framework is demonstrated over a flood-vulnerable sub-watershed of the Ganga Basin. The exhaustive approach holds immense potential to contribute significantly to enhancing the coping and adaptive capacity of vulnerable communities to floods. The flood-related maps derived from the study are precious cartographic products to support efficient disaster management. Link to the article: https://lnkd.in/g8EwJeTw #floods #machinelearning #drr #gangabasin #floodrisks #populationexposure #SDG11

Kenya's deadly floods expose the fatal flaws in ignoring science. It's time for President Ruto and his administration to embrace evidence-based policies and robust disaster preparedness. The future of our nation depends on it. #ClimateAction #ScienceMatters #KenyaFloods https://lnkd.in/dnrQpA9U

🚨 New paper alert! 🚨 Our #openaccess study exploring drought vulnerability in Colorado’s West Slope basin is out now in Earth’s Future! I'm grateful to my collaborators, Patrick Reed and Rohini Gupta, EIT. Our study finds that even optimistic climate-change projections can create a cascade of impacts in the Upper Colorado River Basin, threatening critical regional reservoirs, deliveries to the Lower Colorado River Basin, agriculture, and local ecosystems. Using a newly developed Hidden Markov Model-based synthetic streamflow generator and StateMod, the state of Colorado's water planning model, we explore the multisector implications of drought in the six subbasins of the Colorado River. While climate change impacts on the region are highly uncertain, our results illustrate a system that is currently being pushed to its limits and may cross a water management tipping point under even modest reductions in streamflow. https://lnkd.in/earVXBuC