#2883 - Lower Omo Valley, Ethiopia Settlement Survey

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Lower Omo Valley, Ethiopia Settlement Survey

This task is intended to provide a baseline dataset of the distribution of nomadic pastoralist settlements in the Lower Omo Valley, Ethiopia. For the initial task we are only interested in identifying settlements/villages, buildings/huts, and tagging abandoned settlements/villages.


Nomadic pastoralists, among East Africa’s poorest and most marginalized populations, are also among the least likely to have representation in the data used to plan health interventions. Although pastoralists comprise approximately 10% of Ethiopia’s population, systematic data on their demographic and health status is, according to a recent report by the Ethiopian Ministry of Health, “practically nonexistent.” This lack of data seriously hinders efforts to improve health services to these populations, and interventions planned using indicators from household surveys such as the Demographic and Health Surveys (DHS) fail to adequately take into account their needs.

This project will address the undercoverage of nomadic pastoralists in demographic data, which is a foundational step towards provisioning these populations with health services. Through fieldwork based in Ethiopia’s Lower Omo Valley, we will be developing and piloting a survey tool adapted for mobile pastoralists. This work will contribute to the methodology in the form of a pastoralist health survey module, as well as generate a set of baseline data providing insight into the population dynamics and health status of a mobile pastoralist group.

The methods could be applied in other settings to conduct longitudinal baseline health assessments, and to inform health infrastructure planning for pastoralist groups. At a time when many pastoralist groups are undergoing rapid transition due to climate change, conflict, and development, ensuring their access to health care is more time-sensitive than ever.

The use of satellite imagery to develop a sampling frame for this survey is essential to overcoming the obstacles posed by the remote terrain and logistical difficulties inherent in reaching pastoralist populations.

This project is based out of the Stanford University School of Medicine, with support from Stanford University's Center for African Studies and the American Society of Tropical Medicine and Hygiene. For more information please contact the study's Protocol Director at hwild@stanford.edu.

Created by MapNinja - Updated - Priority: medium

  Instructions

Entities to Map
settlements, abandoned settlements, buildings
Changeset Comment
#hotosm-project-2883 #Stanford #GlobalHealth
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".
Imagery

http://{switch:a,b,c}.tiles.mapbox.com/v4/digitalglobe.316c9a2e/{zoom}/{x}/{y}.png?access_token=pk.eyJ1IjoiZGlnaXRhbGdsb2JlIiwiYSI6ImNqMmFxdGp5aTAwOWIzM3M1NDZ2eGU1a2QifQ.JN5adNxCwK_oprEwFEtjjg


Lower Omo Valley, Ethiopia Settlement Survey Instructions

If you haven't edited within OpenStreetMap before, please go to https://mapgive.state.gov/learn-to-map/ and complete the brief introductory material on participating in HOT tasks.

Tracing Enclosures / Villages

place=village
Villages are typically encircled by a thorn fence and consist of clusters of grass huts as well as livestock kraals/enclosures. Please use the outermost enclosure as your guide to digitizing a village.
Ideally, we would like settlements mapped as a polygon with the tag place=village.

http://web.stanford.edu/~maples/wildimage/village_sm.png

Here is a digitized settlement:

http://web.stanford.edu/~maples/wildimage/villagehuts_sm6.png

Tagging Abandoned Settlements

abandoned=yes

We are interested in mapping inhabited, as well as abandoned settlements, but need to distinguish between the two. In most cases, abandoned settlements will be obvious. The lack of round huts, interior enclosures and general lack of clarity in the boundaries are all indicators. If a settlement is obviously abandoned, please add the tag abandoned=yes

http://web.stanford.edu/~maples/wildimage/villageabandoned_sm.png

Buildings / Huts

Identifying Thatched Roof Buildings

building=hut
Most buildings in the area of interest are made with thatched roofs. Thatched roof buildings are typically round in shape. Please label these as building=hut.

You can place three vertices at the perimeter of a roof...

http://web.stanford.edu/~maples/wildimage/villagehuts_sm4.png

...select the triangle by clicking on it...

http://web.stanford.edu/~maples/wildimage/villagehuts_sm3.png

...and use the letter “o” button on your keyboard after tracing to make your polygon a perfect circle.

http://web.stanford.edu/~maples/wildimage/villagehuts_sm2.png

Here is a finished settlement...

http://web.stanford.edu/~maples/wildimage/villagehuts_sm1_1.png

It is not necessary at this time to map inner livestock enclosures at this time.

This project is based out of the Stanford University School of Medicine, with support from Stanford University's Center for African Studies and the American Society of Tropical Medicine and Hygiene. For more information please contact the study's Protocol Director at hwild@stanford.edu.

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