FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2800840536> ?p ?o ?g. }

• W2800840536 abstract "This research deals with the assessment of drought over Iraq, a country which has been affectedby recurrent droughts of medium to long duration, with serious socio-economic consequences.The overarching aim of this work is to identify reliable large-scale drought monitoring andassessment methods, using a range of freely available meteorological and remote sensing data,as well as model simulations of the water balance. The thesis starts with an overview of Iraq’sclimate, soil, land use and socioeconomic issues, as well as an inventory of commonly usedmethods to assess and express drought.Historical droughts in Iraq have been studied between 2001 and 2013, using a combination ofmeteorological drought indices, remote sensing products, and water balance estimates by theSWAP model and ERA-Interim reanalysis. Drought is assessed for a number of key landsurface types (desert, rangeland, agricultural land, and marshland), with the first threerepresentative of the different climatic zones in Iraq. Their evolutions of drought have beencompared and contrasted.The research uses Standardised Precipitation Index (SPI) and Standardised PrecipitationEvaporation Index (SPEI) drought indices, derived from ERA-Interim/in-situ data of rainfalland temperature, that are applied to evaluate meteorological droughts in Iraq. The effect of themeteorological droughts has also been analysed using land surface temperature (LST),Normalised Difference Vegetation Index (NDVI) and near-surface soil moisture content(SMC), derived from remote sensing data, in isolation and together with SPI/SPEI, for the years2001 to 2015. NDVI has been used widely to detect changes in vegetation extent; LST wasemployed as a proxy of land surface evapotranspiration. NDVI was obtained from MOD13A2products (16-Day L3 Global 1km SIN Grid VI datasets), which were designed for vegetation.LST was obtained through MOD11A2 products available at a spatial resolution of 1km and atemporal resolution of 8 days. SMC was derived from the Soil Moisture and Ocean Salinity(SMOS) product at a resolution of 40 × 40 km.The evolution NDVI and SMC overall followed that of the drought indices, but the interannualvariations of seasonal LST courses were not deemed useful for drought assessment.Furthermore, regression analyses were conducted between SPI3/SPEI3 and NDVI as well asLST to investigate the potential of drought inference from the sign and strength of the correlation coefficient of the slope. This approach appeared promising for the marshlands, butless so for desert, rangeland, and agricultural regions.Finally, the soil water balance Assessment (SWAP) model was used, driven by in-situ andERA-Interim data. Water balance components for each land surface type were studied overtime, to determine the effect of meteorological droughts on the variation of predicted ecosystemand agricultural system’s hydrological behaviour. Comparisons were also made between thevarious land surface types, and between SWAP and ERA-Interim actual evapotranspirationestimates. The outcomes showed that the lowest mean actual evapotranspiration and waterstorage was found between 2008-2010, and 2012, as a result of lack in rainfall, whereas themonthly averages of actual evapotranspiration and water storage were the highest in 2013 and2014. The data of the surface latent heat flux (ERA-Interim), actual evapotranspiration(SWAP), and soil moisture corresponded well for the desert and rangelands but not for theagricultural region. This is the result of the fact that ERA-Interim does not cater for (irrigated)crops whereas SWAP does.The thesis concludes with recommendations with regards to the usefulness of the various(meteorological and remote sensing-based) drought indices, and combinations thereof, forassessment of drought in Iraq and similar climatological conditions." @default.
• W2800840536 created "2018-05-17" @default.
• W2800840536 creator A5040979252 @default.
• W2800840536 date "2017-01-01" @default.
• W2800840536 modified "2023-09-26" @default.
• W2800840536 title "Assessment of the hydrological status of Iraq using a combination of remote sensing and drought indices" @default.
• W2800840536 cites W1487923163 @default.
• W2800840536 cites W1578368825 @default.
• W2800840536 cites W1668042671 @default.
• W2800840536 cites W1733387413 @default.
• W2800840536 cites W1913946974 @default.
• W2800840536 cites W1964034343 @default.
• W2800840536 cites W1974754544 @default.
• W2800840536 cites W1978399629 @default.
• W2800840536 cites W1984678359 @default.
• W2800840536 cites W1987223597 @default.
• W2800840536 cites W1988087892 @default.
• W2800840536 cites W1988512587 @default.
• W2800840536 cites W2001104523 @default.
• W2800840536 cites W2002115844 @default.
• W2800840536 cites W2006476353 @default.
• W2800840536 cites W2014927013 @default.
• W2800840536 cites W2016296385 @default.
• W2800840536 cites W2020352290 @default.
• W2800840536 cites W2023945849 @default.
• W2800840536 cites W2025305089 @default.
• W2800840536 cites W2026955172 @default.
• W2800840536 cites W2030765394 @default.
• W2800840536 cites W2030811593 @default.
• W2800840536 cites W2032993224 @default.
• W2800840536 cites W2048568378 @default.
• W2800840536 cites W2056247239 @default.
• W2800840536 cites W2063623478 @default.
• W2800840536 cites W2070620956 @default.
• W2800840536 cites W2071776755 @default.
• W2800840536 cites W2077968790 @default.
• W2800840536 cites W2081739004 @default.
• W2800840536 cites W2091540726 @default.
• W2800840536 cites W2104959842 @default.
• W2800840536 cites W2111802644 @default.
• W2800840536 cites W2122564864 @default.
• W2800840536 cites W2138231911 @default.
• W2800840536 cites W2138778377 @default.
• W2800840536 cites W2145919800 @default.
• W2800840536 cites W2147347671 @default.
• W2800840536 cites W2153179024 @default.
• W2800840536 cites W2160842951 @default.
• W2800840536 cites W2161881124 @default.
• W2800840536 cites W2162604832 @default.
• W2800840536 cites W2164460492 @default.
• W2800840536 cites W2167452694 @default.
• W2800840536 cites W2167787089 @default.
• W2800840536 cites W2168508547 @default.
• W2800840536 cites W2173251738 @default.
• W2800840536 cites W2232182240 @default.
• W2800840536 cites W2279479839 @default.
• W2800840536 cites W2359849222 @default.
• W2800840536 cites W2558657598 @default.
• W2800840536 cites W2753170345 @default.
• W2800840536 cites W2954511299 @default.
• W2800840536 cites W3015033044 @default.
• W2800840536 cites W303570399 @default.
• W2800840536 cites W602303504 @default.
• W2800840536 cites W2521878310 @default.
• W2800840536 hasPublicationYear "2017" @default.
• W2800840536 type Work @default.
• W2800840536 sameAs 2800840536 @default.
• W2800840536 citedByCount "0" @default.
• W2800840536 crossrefType "dissertation" @default.
• W2800840536 hasAuthorship W2800840536A5040979252 @default.
• W2800840536 hasConcept C100970517 @default.
• W2800840536 hasConcept C107054158 @default.
• W2800840536 hasConcept C127313418 @default.
• W2800840536 hasConcept C127413603 @default.
• W2800840536 hasConcept C130989795 @default.
• W2800840536 hasConcept C132651083 @default.
• W2800840536 hasConcept C142724271 @default.
• W2800840536 hasConcept C153294291 @default.
• W2800840536 hasConcept C1549246 @default.
• W2800840536 hasConcept C187320778 @default.
• W2800840536 hasConcept C18903297 @default.
• W2800840536 hasConcept C205649164 @default.
• W2800840536 hasConcept C2776133958 @default.
• W2800840536 hasConcept C39432304 @default.
• W2800840536 hasConcept C49204034 @default.
• W2800840536 hasConcept C54286561 @default.
• W2800840536 hasConcept C66465714 @default.
• W2800840536 hasConcept C71924100 @default.
• W2800840536 hasConcept C76886044 @default.
• W2800840536 hasConcept C86803240 @default.
• W2800840536 hasConceptScore W2800840536C100970517 @default.
• W2800840536 hasConceptScore W2800840536C107054158 @default.
• W2800840536 hasConceptScore W2800840536C127313418 @default.
• W2800840536 hasConceptScore W2800840536C127413603 @default.
• W2800840536 hasConceptScore W2800840536C130989795 @default.
• W2800840536 hasConceptScore W2800840536C132651083 @default.
• W2800840536 hasConceptScore W2800840536C142724271 @default.
• W2800840536 hasConceptScore W2800840536C153294291 @default.
• W2800840536 hasConceptScore W2800840536C1549246 @default.
• W2800840536 hasConceptScore W2800840536C187320778 @default.

• next