| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/3SBG2FP | |||
| Repository | sid.inpe.br/mtc-m21c/2018/12.06.09.26 (restricted access) | |||
| Last Update | 2018:12.06.09.26.28 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2018/12.06.09.26.28 | |||
| Metadata Last Update | 2020:12.13.19.09.54 (UTC) administrator | |||
| DOI | 10.1016/j.rsase.2018.11.006 | |||
| ISSN | 2352-9385 | |||
| Citation Key | MartinsKaBaFaLoNo:2019:ImSuWa | |||
| Title | Remote sensing of large reservoir in the drought years: Implications on surface water change and turbidity variability of Sobradinho reservoir (Northeast Brazil)  | |||
| Year | 2019 | |||
| Month | Jan. | |||
| Access Date | 2024, May 08 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 13605 KiB | |||
| 2. Context | ||||
| Author | 1 Martins, Vitor S. 2 Kaleita, Amy 3 Barbosa, Cláudio Clemente Faria 4 Fassoni-andrade, Alice C. 5 Lobo, Felipe de Lucia 6 Novo, Evlyn Márcia Leão de Moraes | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGSB 4 5 6 8JMKD3MGP5W/3C9JH39 | |||
| Group | 1 2 3 DIDPI-CGOBT-INPE-MCTIC-GOV-BR 4 5 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 6 DIDSR-CGOBT-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Iowa State University (ISU) 2 Iowa State University (ISU) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Universidade Federal do Rio Grande do Sul (UFRGS) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 3 claudio.barbosa@inpe.br 4 5 felipe.lobo@inpe.br 6 evlyn.novo@inpe.br | |||
| Journal | Remote Sensing Applications: Society and Environment | |||
| Volume | 13 | |||
| Pages | 275-288 | |||
| History (UTC) | 2018-12-06 09:27:20 :: simone :: 2018 -> 2019 2018-12-06 09:27:20 :: simone -> administrator :: 2019 2020-12-13 19:09:54 :: administrator -> simone :: 2019 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | inland water Surface water change Drought eff ects Atmospheric correction Landsat-8 | |||
| Abstract | Sobradinho reservoir has been suffering a severe water loss caused by multi-year drought in the Northeast Brazil. This reservoir contributes to the socio-economic development of the semi-arid region, and the monitoring of water shortage is crucial for people living in this climate-vulnerable region. In this study, we evaluate the surface water change and turbidity variability of Sobradinho reservoir during recent drought years (20132017). A time-series dataset was created using 109 Landsat-8 OLI images for mapping the water extent in the reservoir. A non-linear regression between measured turbidity and surface reflectance (red band) was developed and applied for turbidity retrievals. Additionally, we performed a long-term precipitation analysis (17-year) to assess the rainfall deficit over the catchment area. Our results show that the annual precipitation regimes are below the long-term average during 20122017 period, except 2013. We also found that negative anomalies occur during 26 out of 36 months between 2014 and 2016, mostly in the rainy season. Since the rainfall regimes and river discharges are the major drivers for water recharge, these drought years have a critical impact on the reservoir level. According to our results, the water surface receded about 2073 km2 (out of total 3303 km2) during September 2017; this represents a reduction of 62.8% in the total water extent. The surface water change is spatially distinct across the reservoir. For instance, the upper section of the reservoir was almost totally dried during September 2017, and the water coverage was ~8% (91.25 km2 out of 1128 km2). Although other sections had a relatively low water change (reduction of ~40%), the losses are significant in terms of area (~1035.5 km2). The receding of water extent affects the people living near to the reservoir, and local communities are more distant from water (up to 13 km). We also observed that the turbidity is seasonally dependent, and water clarity presents a strong variability between rainy and dry seasons. In general, the turbidity levels vary from clear water (020 NTU) during the dry season to turbid condition (>50 NTU) during the rainy season. A lack of access to clean and safe drinking water in some periods might be harmful to humans, livestock and domestic animals. Finally, this research contributes to the assessment of drought-related impacts in the Sobradinho, the largest reservoir in the Northeast Brazil. The water shortage is a recurring concern in the semi-arid region, and the remote sensing techniques provide spatially explicit information to enhance the livelihood resilience during drought years. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDPI > Remote sensing of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Remote sensing of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | martins_remote.pdf | |||
| User Group | simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3EQCCU5 8JMKD3MGPCW/3ER446E | |||
| Dissemination | PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||