| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3LKE7JH | |||
| Repository | sid.inpe.br/mtc-m21b/2016/05.02.17.40 | |||
| Last Update | 2016:05.02.17.42.56 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2016/05.02.17.40.58 | |||
| Metadata Last Update | 2018:06.04.02.40.45 (UTC) administrator | |||
| DOI | 10.3390/rs8030219 | |||
| ISSN | 2072-4292 | |||
| Citation Key | EberhardtSRSFAMITFL:2016:ClCoAs | |||
| Title | Cloud cover assessment for operational crop monitoring systems in tropical areas  | |||
| Year | 2016 | |||
| Access Date | 2024, May 18 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 3570 KiB | |||
| 2. Context | ||||
| Author | 1 Eberhardt, Isaque Daniel Rocha 2 Schultz, Bruno 3 Rizzi, Rodrigo 4 Sanches, Ieda Del'Arco 5 Formaggio, Antonio Roberto 6 Atzberger, Clement 7 Mello, Marcio Pupin 8 Immitzer, Markus 9 Trabaquini, Kleber 10 Foschiera, William 11 Luiz, Alfredo José Barreto | |||
| Resume Identifier | 1 2 3 4 5 8JMKD3MGP5W/3C9JGJQ | |||
| Group | 1 2 SER-SRE-SPG-INPE-MCTI-GOV-BR 3 4 DSR-OBT-INPE-MCTI-GOV-BR 5 DSR-OBT-INPE-MCTI-GOV-BR 6 7 8 9 10 DSR-OBT-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Universidade de Brasília (UNB) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade Federal de Pelotas (UFPel) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 University of Natural Resources and Life Sciences 7 The Boeing Company 8 University of Natural Resources and Life Sciences 9 Agricultural Research and Rural Extension Company of Santa Catarina (Epagri) 10 Instituto Nacional de Pesquisas Espaciais (INPE) 11 Embrapa Meio Ambiente | |||
| Author e-Mail Address | 1 isaquedanielre@hotmail.com 2 schultz@dsr.inpe.br 3 rodrigo.rizzi@ufpel.edu.br 4 ieda@dsr.inpe.br 5 formag@dsr.inpe.br 6 clement.atzberger@boku.ac.at 7 marcio.p.mello@boeing.com 8 markus.immitzer@boku.ac.at 9 klebertrabaquini@epagri.sc.gov.br 10 wfoschiera@dsr.inpe.br 11 alfredo.luiz@embrapa.br | |||
| Journal | Remote Sensing | |||
| Volume | 8 | |||
| Number | 3 | |||
| Pages | 219 | |||
| Secondary Mark | B3_GEOGRAFIA B3_ENGENHARIAS_I B4_GEOCIÊNCIAS B4_CIÊNCIAS_AMBIENTAIS B5_CIÊNCIAS_AGRÁRIAS_I | |||
| History (UTC) | 2016-05-02 17:40:58 :: simone -> administrator :: 2016-07-04 12:30:00 :: administrator -> simone :: 2016 2016-07-08 17:13:07 :: simone -> administrator :: 2016 2018-06-04 02:40:45 :: administrator -> simone :: 2016 | |||
| 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 | Agriculture monitoring Clear sky coverage Crop classification MODIS | |||
| Abstract | The potential of optical remote sensing data to identify, map and monitor croplands is well recognized. However, clouds strongly limit the usefulness of optical imagery for these applications. This paper aims at assessing cloud cover conditions over four states in the tropical and sub-tropical Center-South region of Brazil to guide the development of an appropriate agricultural monitoring system based on Landsat-like imagery. Cloudiness was assessed during overlapping four months periods to match the typical length of crop cycles in the study area. The percentage of clear sky occurrence was computed from the 1 km resolution MODIS Cloud Mask product (MOD35) considering 14 years of data between July 2000 and June 2014. Results showed high seasonality of cloud occurrence within the crop year with strong variations across the study area. The maximum seasonality was observed for the two states in the northern part of the study area (i.e., the ones closer to the Equator line), which also presented the lowest averaged values (15%) of clear sky occurrence during the main (summer) cropping period (November to February). In these locations, optical data faces severe constraints for mapping summer crops. On the other hand, relatively favorable conditions were found in the southern part of the study region. In the South, clear sky values of around 45% were found and no significant clear sky seasonality was observed. Results underpin the challenges to implement an operational crop monitoring system based solely on optical remote sensing imagery in tropical and sub-tropical regions, in particular if short-cycle crops have to be monitored during the cloudy summer months. To cope with cloudiness issues, we recommend the use of new systems with higher repetition rates such as Sentinel-2. For local studies, Unmanned Aircraft Vehicles (UAVs) might be used to augment the observing capability. Multi-sensor approaches combining optical and microwave data can be another option. In cases where wall-to-wall maps are not mandatory, statistical sampling approaches might also be a suitable alternative for obtaining useful crop area information. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Cloud cover assessment... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Cloud cover assessment... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3LKE7JH | |||
| zipped data URL | http://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3LKE7JH | |||
| Language | en | |||
| Target File | eberhardt_cloud.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | 8JMKD3MGP3W34P/3L9BUQ5 | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/10.18.22.34 2 sid.inpe.br/bibdigital/2013/09.13.21.11 2 | |||
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||