Publications by Gopi Goteti
USA Drought of 2013: Analysis of High-resolution Rainfall Data Using R
The ongoing drought in California and other parts of Southwestern United States has been reported extensively by newspapers and government sites.Although rainfall deficit is technically meteorological drought, and drought could be of several other types (such as hydrological, agricultural, etc.), the attempt here is to demonstrate th...
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The Tornado Project: Annual Tornado Frequency by Location
The goal of this open source R-based analysis, as mentioned earlier (first post, second post) is to bring consistency and transparency to the analyses of publicly available Tornado data.The latest addition to the project is the analysis of local tornado occurrence probability. Below graphics show the average number of tornadoes per y...
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Dams in the United States from the National Inventory of Dams (NID) Database
There is no database containing information on all the dams in the United States. The single largest source is the National Inventory of Dams (NID) from the US Army Corps of Engineers which claims to have more than 80,000 dams. I downloaded the entire data from NID and also cleaned it up. This GitHub site provides both the raw data I...
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New R package dams: Dams in the United States
The dams package provides functionality to access over 74,000 dams in the National Inventory of Dams (NID) from the US Army Corps of Engineers, the single largest source of dams in the United States. Each dam has 64 attributes such as geographical, structural, hydraulic and operational characteristics.Obtaining data directly from NID...
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Updates to R package emdatr: Global Disaster Losses from the EMDAT Database
The EMDAT database provides valuable information on human and financial losses from natural disasters around the world. Some of the issues with the EMDAT data are lack of entire data accessibility, static and inconsistent summary reports, and the lack of auxiliary financial and demographic data. The emdatr package addresses some of these issues.�...
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New R package rainfreq: Rainfall Frequency (or Design Storm) Estimates from the US National Weather Service
Rainfall estimates at desired frequency (e.g., 1% annual chance or 100-year return period) and duration (e.g., 24-hour) are often required in the design of dams and other hydraulic structures, catastrophe risk modeling, environmental planning and management. One major source of such estimates for the USA is the NOAA National Weather Service. Raw ...
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New R package hazus: Damage functions from FEMA’s HAZUS software for use in modeling financial losses from natural disasters
Damage Functions (DFs) translate physical damage to property, resulting from natural disasters, to financial damage. FEMA in USA developed several thousand DFs and these serve as a benchmark in natural catastrophe modeling, both in academia and industry. However, these DFs and their documentation are buried within FEMA’s HAZUS soft...
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Updates to R package raincpc: Global Daily Rainfall for over 35 years
The Climate Prediction Center’s (CPC) global rainfall data, 1979 – present, 50 km resolution, is one of the few high-quality, long-term, observation-based, daily rainfall products available for free. Although raw data is available at CPC’s ftp site, obtaining and processing the data is not easy since there are over 12000 files, and fo...
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Updates to R package emdatr: More than 21000 Natural Disasters since 1900
The International Disaster Database, EMDAT database from the Center for Research on the Epidemiology of Disasters (CRED, Belgium) is often used as a reference for losses on human life and property resulting from select natural and man-made disasters. The goal of the emdatr package is to improve the EMDAT database by promoting its use, shedding...
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