Geopandas In Action
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GeoPandas in Action
"GeoPandas in Action" "GeoPandas in Action" is a comprehensive exploration of GeoPandas, the premier Python library for geospatial data science and analysis. Beginning with a solid grounding in the architectural foundations of GeoPandas, this book meticulously examines its data models and integration with the wider Python geospatial ecosystem—encompassing essentials like Pandas, Shapely, Fiona, and PyProj. Clear discussions of coordinate systems, geometry types, and interoperability standards ensure readers grasp not just the "how" but the "why" behind best practices in geospatial programming. Building upon this solid base, the book delves into advanced input/output operations, spatial algorithms, and state-of-the-art analysis techniques. Readers will learn to handle massive and complex geospatial datasets efficiently, perform high-performance spatial joins, overlays, and morphological operations, and unlock advanced analytics such as clustering, spatial statistics, network analysis, and multi-temporal data modeling. Throughout, practical guidance is paired with cutting-edge topics like cloud-native geospatial workflows, distributed processing with Dask, seamless integration with desktop GIS tools, and large-scale ETL pipeline automation. The final sections equip users with the skills needed for professional-grade geospatial software development: robust testing and validation strategies, CI/CD for spatial data infrastructures, and rigorous metadata and audit trail management. Looking forward, "GeoPandas in Action" surveys emerging trends in multidimensional and spatio-temporal analytics, geospatial privacy, edge and serverless computing, and plugin extensibility. Whether you are a software engineer, data scientist, or GIS analyst, this book is your authoritative guide to building scalable, reproducible, and innovative geospatial solutions with GeoPandas.
PostGIS in Action, Third Edition
PostGIS in Action, third edition teaches readers of all levels to write spatial queries for PostgreSQL. You'll start by exploring vector-, raster-, and topology-based GIS before quickly progressing to analyzing, viewing, and mapping data. This fully updated third edition covers key changes in PostGIS 3.1 and PostgreSQL 13, including parallelization support, partitioned tables, and new JSON functions that help in creating web mapping applications. PostGIS in Action, third edition shows you how to solve real-world geodata problems. You'll go beyond basic mapping, and explore custom functions for your applications. Inside this fully updated edition, you'll find coverage of new PostGIS features such as PostGIS Window functions, parallelization of queries, and outputting data for applications using JSON and Vector Tile functions.
Setting up a drought Anticipatory Action trigger mechanism
Author: Food and Agriculture Organization of the United Nations
language: en
Publisher: Food & Agriculture Org. [Author] [Author]
Release Date: 2024-07-18
An Anticipatory Action approach seeks to identify multiple windows of opportunity for action throughout the duration of predictable shocks, such as drought. It links early warning information with flexible financing to trigger actions that reduce the impact on the most vulnerable. A robust, context-specific trigger mechanism is at the heart of this approach, as it produces early warning triggers for the activation of anticipatory actions to protect diverse livelihood groups at the right time and with as little uncertainty as possible. Drawing on the experience of the Food and Agriculture Organization of the United Nations and its partners in implementing Anticipatory Action, this guidance document outlines five steps for establishing an Anticipatory Action trigger mechanism for drought.