Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

1.8K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
1.8K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

45
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
45
Precipitation Processes01:12

Precipitation Processes

446
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
446
Responses to Drought and Flooding02:41

Responses to Drought and Flooding

10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Precipitation Gravimetry01:03

Precipitation Gravimetry

6.2K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
6.2K
Levels of Use of a GIS01:29

Levels of Use of a GIS

49
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
49

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Knowledge, Attitudes, Practices, and Information Pathways Related to Brucellosis Among Adults in Najran City, Saudi Arabia: A Stratified Time-Location Cross-Sectional Study.

Tropical medicine and infectious disease·2026
Same author

Minimally invasive total thoracoscopic fixation versus open fixation for multiple Rib fractures: Systematic review and meta-analysis of clinical outcomes.

Injury·2026
Same author

Phytochemical Analysis and Evaluation of the Antioxidant, Anticholinesterase, Antidiarrheal, and Antispasmodic Potential of Dichloromethane and Ethyl Acetate Fractions of Solanum surattense Burm. f.

Chemistry & biodiversity·2026
Same author

A machine learning assisted truncated adaptive EWMA chart for robust process monitoring.

Scientific reports·2025
Same author

Microbial Dream Team: Cotton Performs Better in Salty Soil with Pseudomonas hunanensis RT-12 and Staphylococcus caprae DS-2.

Current microbiology·2025
Same author

Survival analysis of time to quit attempt using data from the international tobacco control survey in Canada (2002-2014).

Scientific reports·2025
Same journal

Therapeutic potential of crude protein extracts from two Egyptian freshwater snails Lanistes carinatus and Bellamya unicolor.

Scientific reports·2026
Same journal

Microbial contamination of donor corneas and post-keratoplasty endophthalmitis: a comparison between Japanese and U.S. eye banks using cold storage.

Scientific reports·2026
Same journal

Prevalence and contributing factors of virological non-suppression among adult patients on first-line antiretroviral therapy in tertiary hospitals in Ethiopia.

Scientific reports·2026
Same journal

An in vitro comparison of color stability between alkasite and different restorative materials in various staining solutions.

Scientific reports·2026
Same journal

Toward accessible mRNA LNP formulation: systematic evaluation of mixing strategies and key parameters.

Scientific reports·2026
Same journal

A network analysis of personality traits, mentalizing, and psychological health in Chinese college students.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Jun 27, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

8.0K

A support vector machine based drought index for regional drought analysis.

Mohammed A Alshahrani1, Muhammad Laiq2, Muhammad Noor-Ul-Amin2

  • 1Department of Mathematics, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, 11942, Alkharj, Saudi Arabia.

Scientific Reports
|April 29, 2024
PubMed
Summary
This summary is machine-generated.

Global warming increases drought risks. A new Support Vector Machine based drought index (SVM-DI) improves regional drought analysis by reducing extreme value impacts, offering more accurate spatiotemporal characterization.

Keywords:
Drought analysisDrought indexMachine learningSupport vector machine

More Related Videos

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
12:26

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Published on: October 11, 2016

13.3K
A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

11.5K

Related Experiment Videos

Last Updated: Jun 27, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

8.0K
Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
12:26

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Published on: October 11, 2016

13.3K
A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

11.5K

Area of Science:

  • Environmental Science
  • Climate Science
  • Data Science

Background:

  • Global warming is increasing the frequency and intensity of drought hazards worldwide.
  • Spatial variability in meteorological data complicates accurate regional drought analysis.
  • Existing drought indicators can be distorted by extreme values, limiting their reliability.

Purpose of the Study:

  • To enhance the accuracy and quality of regional drought characterization.
  • To develop a novel drought indicator for continuous monitoring.
  • To mitigate the influence of extreme values in precipitation data.

Main Methods:

  • Development of the Support Vector Machine based drought index (SVM-DI).
  • Weighting an SVM-based X-bar chart with regional precipitation aggregate data.
  • Comparison of SVM-DI with the Regional Standard Precipitation Index (RSPI) using Pearson correlation.

Main Results:

  • SVM-DI demonstrated more pronounced regional characteristics in correlations compared to RSPI.
  • SVM-DI exhibited a significantly lower Coefficient of Variation.
  • The new index effectively reduces the impact of extreme values and outliers.

Conclusions:

  • SVM-DI is a valuable tool for robust regional drought analysis.
  • The methodology offers improved spatiotemporal drought characterization.
  • This approach enhances the reliability of drought monitoring systems.