[GRASS-SVN] r64923 - in grass-promo/grassposter/2015_EGU_WD_Ethiopia: . images
svn_grass at osgeo.org
svn_grass at osgeo.org
Thu Mar 26 01:03:20 PDT 2015
Author: ychemin
Date: 2015-03-26 01:03:20 -0700 (Thu, 26 Mar 2015)
New Revision: 64923
Added:
grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/ETH_UBN_Fogera.png
grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/Ta.png
Modified:
grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.pyg
grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.tex
Log:
Updated poster
Added: grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/ETH_UBN_Fogera.png
===================================================================
(Binary files differ)
Property changes on: grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/ETH_UBN_Fogera.png
___________________________________________________________________
Added: svn:mime-type
+ application/octet-stream
Added: grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/Ta.png
===================================================================
(Binary files differ)
Property changes on: grass-promo/grassposter/2015_EGU_WD_Ethiopia/images/Ta.png
___________________________________________________________________
Added: svn:mime-type
+ application/octet-stream
Modified: grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.pyg
===================================================================
--- grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.pyg 2015-03-25 20:30:45 UTC (rev 64922)
+++ grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.pyg 2015-03-26 08:03:20 UTC (rev 64923)
@@ -10,67 +10,67 @@
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\def\PYZbs{\char`\\}
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Modified: grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.tex
===================================================================
--- grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.tex 2015-03-25 20:30:45 UTC (rev 64922)
+++ grass-promo/grassposter/2015_EGU_WD_Ethiopia/poster.tex 2015-03-26 08:03:20 UTC (rev 64923)
@@ -49,7 +49,7 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\blocknode{Abstract}{
-\small \noindent This research work is about finding the connection between farmers perspectives on changes of water conditions in their socio-agricultural environment and satellite remote sensing analysis.\newline
+\small \noindent This research work is about finding the connection between farmers perspectives on changes of water conditions in their socio-agricultural environment and satellite remote sensing analysis.\newline\linebreak
Key informant surveys were conducted to investigate localised views on water scarcity as a counterpoint to the physical measurement of water availability. Does a numerical or mapped image identifying water scarcity always equate to a dearth of water for agriculture? To push the limits of the relationship between human and physical data we sought to ground-truth GIS results with the practical experience and knowledge of people living in the area.\newline\linebreak
\noindent We data-mined public domain satellite data with FOSS (GDAL \cite{GDAL}, GRASS GIS \cite{neteler2012grass}) and produced water-related spatio-temporal domains for our study area and the larger Upper Nile Basin.\newline\linebreak
Accumulated remote sensing information was then cross-referenced with informant’s accounts of water availability for the same space and time. During the survey fieldwork the team also took photographs electronically stamped with GPS coordinates to compare and contrast the views of informants and the remote sensing information with high resolution images of the landscape.\newline\linebreak
@@ -61,22 +61,16 @@
\smallskip
\begin{center}
\begin{tabular}{c p{0.5\textwidth}}
- \raisebox{-0.9\totalheight}{\includegraphics[width=0.45\textwidth]{./images/fig1}}
+ \raisebox{-0.9\totalheight}{\includegraphics[width=0.45\textwidth]{./images/ETH_UBN_Fogera}}
&
- The transpiration data is created from energy balance modelling \citep{chemin2012distributed} modules (i.eb.*, i.evapo.*) within GRASS GIS version 7, by partitioning the net radiation (r.sun) into soil heat flux (i.eb.soilheatflux), sensible heat flux (i.eb.h\_*) and the residual being the energy needed to evaporate water (i.eb.evapfr, i.eb.eta). This information is then fractionated into biotic (transpiration) and abiotic (evaporation) parts using vegetation fraction.\newline\linebreak
-The accumulated transpiration is subjected to temporal scrutiny ...\newline
- \end{tabular}\newline
+ The transpiration data is created from energy balance modelling \citep{chemin2012distributed} modules (i.eb.*, i.evapo.*) within GRASS GIS \cite{neteler2012grass} version 7, by partitioning the net radiation (r.sun) into soil heat flux (i.eb.soilheatflux), sensible heat flux (i.eb.h\_*) and the residual being the energy needed to evaporate water (i.eb.evapfr, i.eb.eta). This information is then fractionated into biotic (transpiration) and abiotic (evaporation) parts using vegetation fraction.\newline\linebreak
+The accumulated transpiration is subjected to temporal scrutiny, the major transpiration peak every year is preceded by a temporary increment in transpiration. This temporary change may (or not) carry enough trasnpiration to crop Spring maize in Fogera, the topic of this research.\newline
+\end{tabular}\newline
\end{center}
\begin{center}
- \begin{tabular}{cc}
- \includegraphics[width=0.45\textwidth]{./images/fig1}
- &
- \includegraphics[width=0.45\textwidth]{./images/fig1}
- \end{tabular}
+\includegraphics[width=\textwidth]{./images/Ta}
\end{center}
-More info here...\newline
-
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\blocknode{Acknowledgements}{
@@ -108,7 +102,17 @@
We data-mined public domain satellite data and produced water-related spatio-temporal domains that was then cross-referenced with informant’s accounts of water availability for the same space and time.\newline
}
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\blocknode{Rainfall deficit in May perceived as water scarcity}{
+Farmers in upland Fogera associate the failure of the May rains with “drought”. For instance, a male farmer stated that, “When it is drought, it is the season of millet (teff).” A female farmer stressed this seasonal scarcity in water availability by insisting that “It is this drought that hinders crop production.” However, if the rain fails in May, it does not necessarily represent an inevitable drought year, in that rain can be available in the subsequent months. Nevertheless, rainfed maize and millet planting in May is a central concern as it provides food and fodder for season, buffering household food security and reducing stress on further crop-related decision-making.\newline\linebreak
+Rainfall variability has been one of the important factors impeding sustained implementation of intensification strategies, and particularly the use of fertilisers. Key informants indicated that rainfall variability has been discouraging the use of fertiliser due to risk of unsuccessful crop production which exacerbates farmers’ indebtedness besides losing production.i\newline\linebreak
+Vulnerability and capacity to respond to rainfall variability differs depending on individual natural, financial and social assets, as well as gender and socio-cultural variables. Farmers in Fogera have been attempting to respond to problems related to water availability based on adaptation, indigenous knowledge, practicing available options. Responses undertaken by individual farmers and communities include: adjusting planting times and cropping pattern; deploying traditional ecological knowledge of soil to mitigate risk associated with water availability, expanding traditional and motor-pump irrigation \citep{dessalegn2014is}; and sponsoring religious figures to ameliorate the violation of spiritual sanctions that are transgressed in contemporary agricultural production.\newline\linebreak
+}
+
+\startthirdcolumn
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\blocknode{Spring Maize and food security}{
\begin{center}
\begin{tabular}{c p{0.5\textwidth}}
@@ -122,17 +126,7 @@
}
-
-\startthirdcolumn
-
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-\blocknode{May rainfall deficit perceived water scarcity}{
-Farmers in upland Fogera associate the failure of the May rains with “drought”. For instance, a male farmer stated that, “When it is drought, it is the season of millet (teff).” A female farmer stressed this seasonal scarcity in water availability by insisting that “It is this drought that hinders crop production.” However, if the rain fails in May, it does not necessarily represent an inevitable drought year, in that rain can be available in the subsequent months. Nevertheless, rainfed maize and millet planting in May is a central concern as it provides food and fodder for season, buffering household food security and reducing stress on further crop-related decision-making.\newline\linebreak
-Rainfall variability has been one of the important factors impeding sustained implementation of intensification strategies, and particularly the use of fertilisers. Key informants indicated that rainfall variability has been discouraging the use of fertiliser due to risk of unsuccessful crop production which exacerbates farmers’ indebtedness besides losing production.i\newline\linebreak
-Vulnerability and capacity to respond to rainfall variability differs depending on individual natural, financial and social assets, as well as gender and socio-cultural variables. Farmers in Fogera have been attempting to respond to problems related to water availability based on adaptation, indigenous knowledge, practicing available options. Responses undertaken by individual farmers and communities include: adjusting planting times and cropping pattern; deploying traditional ecological knowledge of soil to mitigate risk associated with water availability, expanding traditional and motor-pump irrigation \citep{dessalegn2014is}; and sponsoring religious figures to ameliorate the violation of spiritual sanctions that are transgressed in contemporary agricultural production.\newline\linebreak
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