| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/43UD66E | |||
| Repository | sid.inpe.br/mtc-m21c/2021/01.12.14.35 | |||
| Last Update | 2021:01.12.14.35.52 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/01.12.14.35.52 | |||
| Metadata Last Update | 2022:04.03.22.28.02 (UTC) administrator | |||
| DOI | 10.3390/atmos12010028 | |||
| ISSN | 2073-4433 | |||
| Citation Key | AimiZBSHRRDMVBHR:2021:EvAtDo | |||
| Title | Evaluation of atmospheric downward longwave radiation in the brazilian pampa region  | |||
| Year | 2021 | |||
| Month | Jan. | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 720 KiB | |||
| 2. Context | ||||
| Author | 1 Aimi, Daniele 2 Zimmer, Tamires 3 Buligon, Lidiane 4 Souza, Vanessa de Arruda 5 Hernandez, Roilan 6 Romio, Leugim Corteze 7 Rubert, Gisele Cristina Dotto 8 Diaz, Marcelo Bortoluzzi 9 Maldaner, Silvana 10 Veeck, Gustavo Pujol 11 Bremm, Tiago 12 Herdies, Dirceu Luis 13 Roberti, Debora Regina | |||
| Resume Identifier | 1 2 3 4 5 6 7 8 9 10 11 12 8JMKD3MGP5W/3C9JGTU | |||
| ORCID | 1 2 0000-0002-2384-0630 3 4 0000-0002-8518-1271 5 6 0000-0001-5164-3792 7 0000-0002-1805-8126 8 9 10 11 0000-0003-1564-1014 12 0000-0002-2872-8453 13 0000-0002-3902-0952 | |||
| Group | 1 2 3 4 5 6 7 8 9 10 11 12 DIMNT-CGCT-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Universidade Federal de Santa Maria (UFSM) 2 Universidade Federal de Santa Maria (UFSM) 3 Universidade Federal de Santa Maria (UFSM) 4 Universidade Federal de Santa Maria (UFSM) 5 Universidade Federal de Santa Maria (UFSM) 6 Universidade Federal do Pampa (UNIPAMPA) 7 Universidade Federal de Santa Maria (UFSM) 8 Universidade Federal de Santa Maria (UFSM) 9 Universidade Federal de Santa Maria (UFSM) 10 Universidade Federal de Santa Maria (UFSM) 11 Universidade Federal de Santa Maria (UFSM) 12 Instituto Nacional de Pesquisas Espaciais (INPE) 13 Universidade Federal de Santa Maria (UFSM) | |||
| Author e-Mail Address | 1 danielefm@gmail.com 2 tz.tamireszimmer@gmail.com 3 prof.buligon@gmail.com 4 v.arruda.s@gmail.com 5 roylanhv@gmail.com 6 leugimcr@gmail.com 7 girubert@gmail.com 8 marbdiaz@gmail.com 9 silvana.maldaner@gmail.com 10 veeckgp@gmail.com 11 bremm.tiago@gmail.com 12 dirceu.herdies@inpe.br 13 debora@ufsm.br | |||
| Journal | Atmosphere | |||
| Volume | 12 | |||
| Number | 1 | |||
| Pages | 1-17 | |||
| Secondary Mark | B3_ENGENHARIAS_III B3_ENGENHARIAS_I B3_CIÊNCIAS_AMBIENTAIS B4_ENGENHARIAS_II B5_GEOCIÊNCIAS | |||
| History (UTC) | 2021-01-12 14:35:52 :: simone -> administrator :: 2021-01-12 14:35:53 :: administrator -> simone :: 2021 2021-01-12 14:37:11 :: simone -> administrator :: 2021 2022-04-03 22:28:02 :: administrator -> simone :: 2021 | |||
| 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 | atmospheric downward longwave radiation Pampa biome statistical analyses modeling | |||
| Abstract | Atmospheric downward longwave radiation flux (L↓) is a variable that directly influences the surface net radiation and consequently, weather and climatic conditions. Measurements of L↓ are scarce, and the use of classical models depending on some atmospheric variables may be an alternative. In this paper, we analyzed L↓ measured over the Brazilian Pampa biome. This region is located in a humid subtropical climate zone and characterized by well defined seasons and well distributed precipitation. Furthermore, we evaluated the performance of the eleven classical L↓ models for clear sky with one-year experimental data collected in the Santa Maria experimental site (SMA) over native vegetation and high relative humidity throughout the year. Most of the L↓ estimations, using the original coefficients, underestimated the experimental data. We performed the local calibration of the L↓ equations coefficients over an annual period and separated them into different sky cover classifications: clear sky, partly cloudy sky, and cloudy sky. The calibrations decreased the errors, especially in cloudy sky classification. We also proposed the joint calibration between the clear sky emissivity equations and cloud sky correction function to reduce errors and evaluate different sky classifications. The results found after these calibrations presented better statistical indexes. Additionally, we presented a new empirical model to estimate L↓ based on multiple regression analysis using water vapor pressure and air temperature. The new equation well represents partial and cloudy sky, even without including the cloud cover parameterization, and was validated with the following five years in SMA and two years in the Cachoeira do Sul experimental site (CAS). The new equation proposed herein presents a root mean square error ranging from 13 to 21 Wm−2 and correlation coefficient from 0.68 to 0.83 for different sky cover classifications. Therefore, we recommend using the novel equation to calculate L↓ over the Pampa biome under these specific climatic conditions. | |||
| Area | MET | |||
| Arrangement | Evaluation of atmospheric... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
| |||
| 4. Conditions of access and use | ||||
| data URL | http://mtc-m21c.sid.inpe.br/ibi/8JMKD3MGP3W34R/43UD66E | |||
| zipped data URL | http://mtc-m21c.sid.inpe.br/zip/8JMKD3MGP3W34R/43UD66E | |||
| Language | en | |||
| Target File | aimi_evaluation.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KUATE | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.44.41 4 sid.inpe.br/bibdigital/2022/04.03.22.23 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||